Crop and Pest Management Guidelines

Pest(s)

Materials

Rate per Acre

Comments

5.2.7 IMMEDIATE PREBLOOM (just before blossoms open)

Phomopsis cane and leaf spot (fruit and rachis infections)

Fruit infections can occur during the bloom and early postbloom period then remain dormant until preharvest. In vineyards with a previous history of this disease, continued protection against fruit and rachis infections may be beneficial from the pre-bloom through pea-sized berry period if the weather is wet during this time.

*^NYDithane DF

3-4 lb

or Dithane M45

or Manzate Pro-Stick 75DF

or Penncozeb 75DF

OR

*^NYDithane F-45

2.4-3.2 qt

or *^NYManzate Max 4F

OR

*^NYDexter Max

3.2-4.25 lb

Label rates for *^NYDexter Max are 1.6 to 4.25 lbs/A. The 3.2 and 4.25 lb/A rates of this product contain the same amount of azoxystrobin as 10 and about 13.1 fl oz of Abound flowable (the low and mid-range of Abound rates for grapes, respectively), and the same amount of mancozeb as 3 and 4 lbs of the 75DF formulations of Dithane, Manzate, Penncozeb, and other mancozeb products.

OR

Captan 4L

1.5-2.0 qt

or Captan 50WP

3-4 lb

or Captan 80WDG

2-2.5 lb

or Captan Gold 4L

1-2 qt

or Captan Gold 80WDG

1.25-2.5 lb

OR

Abound 2SC

11-15 fl oz

Abound, Pristine, Quadris Top, †Topguard EQ, and *^NYSovran are only moderately effective against Phomopsis, but may be adequate now if more effective materials were used earlier.

CAUTION: ABOUND, QUADRIS TOP, †TOPGUARD EQ, AND *^NYDEXTER MAX CAN CAUSE INJURY TO NEARBY APPLE TREES AND THEIR USE IS RESTRICTED IN SOME LOCALES. PRISTINE AND QUADRIS TOP CAN CAUSE INJURY TO SOME GRAPE CULTIVARS, INCLUDING CONCORD. REFER TO THE ABOUND ENTRY IN SECTION 3.2 ("FUNGICIDE INFORMATION") FOR ADDITIONAL INFORMATION ABOUT THESE ISSUES.

OR

*^NYSovran 50WG

3.2-4.0 oz

OR

Quadris Top 2.7SC

12-14 fl oz

OR

†Topguard EQ 4.29SC

6-8 fl oz

OR

Pristine

8-12.5 oz

Black rot

Do not delay black rot sprays beyond this stage. The immediate prebloom through early postbloom periods are critical for management of black rot. Although several other fungicides have some activity against black rot, the listed products are those with the most reliable activity at this critical time.

*^NYDithane DF,

3-4 lb

or Dithane M45

or Manzate Pro-Stick 75DF

or Penncozeb 75DF

OR

*^NYDithane F-45

2.4-3.2 qt

or *^NYManzate Max 4F

OR

*^NYDexter Max

3.2-4.25 lb

Label rates for *^NYDexter Max are 1.6 to 4.25 lbs/A. The 3.2 and 4.25 lb/A rates of this product contain the same amount of azoxystrobin as 10 and about 13.1 fl oz of Abound flowable (the low and mid-range of Abound rates for grapes, respectively), and the same amount of mancozeb as 3 and 4 lbs of the 75DF formulations of Dithane, Manzate, Penncozeb, and other mancozeb products.

OR

Ziram 76DF

3-4 lb

OR

Tebuconazole products

4 oz

Most DMI (Group 3) fungicides - specifically, difenoconazole (Revus Top, Inspire Super, Quadris Top), Rally, generic tebuconazole products, Mettle, and flutriafol (†Rhyme, †Topguard EQ) - are highly effective against black rot. They provide limited (several days) "forward" protective activity and up to one week of postinfection ("backward") activity. This combination of "forward" and "backward" activity accounts for their high efficacy when applied at regular 10- to 14-day spray intervals, but their limited protective activity should be considered when alternating with materials such as the strobilurins or mancozeb or ziram, which have little to no postinfection activity. The protective activity of sprays containing these materials is increased when they are tank-mixed with mancozeb or ziram, included also for control of Phomopsis and downy mildew. Mefentrifluconazole (*^NY†Cevya) has also been found to

OR

Mettle 1 ME

5 oz

OR

†Rhyme 2.08SC

5 fl oz

OR

Revus Top 4SC

7 fl oz

or Inspire Super

16-20 fl oz

OR

†Topguard EQ 4.29SC

5-6 fl oz

OR

*^NYCevya

4-5 fl oz

have excellent activity against black rot, but data are limited. The azoxystrobin contained in the combination products, Quadris Top and †Topguard EQ, will also provide additional protective ability; note, however, that the dose of azoxystrobin provided by the low rate (5 fl oz) of †Topguard EQ is only 75% as much as provided by the low rate (10 fl oz) of Quadris Top. Resistance Warning: For resistance management, it is recommended that Group3 fungicides be applied a maximum of three times per season in total for all such products combined. CAUTION: DO NOT USE REVUS TOP OR INSPIRE SUPER ON CONCORD GRAPES (CAUSES INJURY). *NY Cevya should not be applied/tank mixed with horticultural oils (JMS Stylet oil, Purespray green), or injury to foliage and fruit may occur.

OR

*^NY†Luna Experience

6.0-8.6 fl oz

Although *^NY†Luna Experience is labeled for control of powdery mildew and can be used at lower rates, this higher rate is needed for reliable black rot control. The 8.6 fl oz rate provides the same dose of tebuconazole as the standard 4.0 oz rate of 45DF tebuconazole products such as the former product, ^Elite.

OR

*^NY†Luna Sensation

7 fl oz

The 7.0 fl oz rate of *^NY†Luna Sensation should provide a dose of trifloxystrobin equivalent to 3.5 fl oz of Flint Extra, enough for good to excellent control of black rot. Do not apply this product to Concord grapes or injury may occur.

OR

Abound 2SC

11-15 fl oz

Note that Abound, QUADRIS TOP, †TOPGUARD EQ, and *^NYdexter max ARE extremely phytotoxic to certain

OR

*^NYSovran 50WG

3.2-4.0 oz

OR

Flint Extra

3.5-3.8 fl oz

apple varieties due to the active ingredient azoxystrobin. See the ABOUND entry in Section 3.2 for information concerning use of these fungicides in Pennsylvania. DO NOT USE FLINT EXTRA OR *^NY†LUNA SENSATION ON CONCORD GRAPES AS IT MAY CAUSE INJURY.

OR

Pristine

10-12.5 oz

CAUTION: do not use Pristine on Concord or Noiret grapes (causes injury).

OR

Quadris Top 2.7SC

12-14 fl oz

CAUTION: Do not use Quadris Top or *^NYAprovia Top on Concord grapes (DIFENOCONAZOLE COMPONENT causes injury). Note that Quadris Top ALSO is extremely phytotoxic to certain apple varieties due to the active ingredient azoxystrobin.

OR

*^NYAprovia Top 1.6EC

8.5-13.3 fl oz

OR

*^NY†Miravis Prime

9.2-13.4 fl oz

Powdery mildew

Do not delay sprays beyond this stage on Concord and other moderately susceptible varieties. Fruit of all varieties is most susceptible to powdery mildew from the immediate prebloom through the fruit set period, so this is a critical period to control fruit infections. Therefore, it is a time to use highly effective fungicides for powdery mildew control. Regardless of the material used, sprays should be applied to every row. Fungicide rates may need to be adjusted upwards from earlier applications to compensate for increased foliage development and the extreme susceptibility of young berries, and spray intervals should be tightened while fruit remain highly susceptible, particularly when environmental conditions favor disease development (see Section 3.1 for details).

Liquid Sulfur 6L

see label, rates vary

Note that sulfur, oils (Stylet Oil and Purespray Green), salts (Nutrol, Kaligreen, Milstop) and the various biopesticides must be applied more frequently than most conventional fungicides (maximum 7 to 10 day intervals, depending on rate and weather, versus about 14 days for the conventionals). Refer to the discussion of these products in Section 3.2 ("Fungicide Information").

OR

Wettable Sulfur (several formulations)

see label, rates vary

OR

JMS Stylet Oil

1-2% conc., read the label

OR

Purespray Green

1-2% conc.

OR

Nutrol

4 lb

OR

Kaligreen 82 SP

2.5 lb

OR

Milstop 85 WG

2.5 lb

Nutrol and the potassium bicarbonate products (Kaligreen, Milstop) provide no "forward" (protective) activity but are active in post-infection and eradicant modes, where they are most effective against incubating or very young colonies. For best results, they should be tank-mixed with a product that provides protective activity; or if used alone, they should be applied at short (maximum 7 days) spray intervals.

OR

Tebuconazole products

4 oz

Resistance Warning: Widespread "partial" resistance to the sterol inhibitor or DMI (Group 3) fungicides (generic tebuconazole products, tetraconazole [Mettle], myclobutanil [Rally], difenoconazole products [Group 3 component of Revus Top, Inspire Super, *^NYAprovia Top, and Quadris Top], flutriafol products [†Rhyme, †Topguard EQ], triflumizole products [*^NYViticure, *^NYProcure, *^NYTrionic], and mefentrifluconazole [*^NYCevya]) has limited their usefulness during this critical period. Thus, most are not recommended on V. vinifera or highly susceptible hybrid cultivars from the immediate prebloom through early postbloom stage of development. However, *^NYCevya and Revus Top have provided very good to excellent control even on such cultivars in several repeated trials where other DMI fungicides sometimes did not (as have Inspire Super and Quadris Top when applied at their top label rates, which provide a dose of difenoconazole equivalent to Revus Top). Nevertheless, some premium powdery mildew products have sometimes given better control than even this best of the Group 3 fungicides. It is strongly recommended that growers make no more than three applications of all Group 3 products combined in any one season, in order to minimize further loss of sensitivity to them. CAUTION: DO NOT USE REVUS TOP, QUADRIS TOP, OR INSPIRE SUPER ON CONCORD GRAPES (CAUSES INJURY). *NY Cevya should not be applied/tank mixed with horticultural oils (JMS Stylet oil, Purespray green), or injury to foliage and fruit may occur.

OR

Rally 40WSP

4-5 oz

OR

*^NYViticure 4SC

6-8 fl oz

OR

*^NYProcure 480SC

6-8 fl oz

OR

*^NYTrionic 4SC

6-8 fl oz

OR

Mettle 1ME

3-5 oz

OR

†Rhyme 2.08SC

5 fl oz

OR

Revus Top 4SC

7 fl oz

or Inspire Super

16-20 fl oz

OR

*^NYCevya

4-5 fl oz

OR

*^NY†Gatten

6.4 fl oz

The *^NY†Gatten label recommends 6.4 fl oz per acre with a maximum 25.6 fl oz per acre per year with a maximum 4 applications, but we do not recommend more than 3 for resistance management purposes. Restrictions for New York - DO NOT apply more than 16 fl oz /A/year.

OR

Flint Extra

3.0-3.5 fl oz

Resistance Warning: Powdery mildew resistance to the solo strobilurin products (Abound, Flint Extra, *^NYSovran) has occurred in multiple vineyards, sometimes resulting in extensive crop loss. When such

OR

*^NYSovran 50WG

3.2-4.0 oz

OR

Abound 2SC

11-15 fl oz

resistance occurs, none of the strobilurin fungicides will provide commercial control of powdery mildew, and they must be tank-mixed with an unrelated, effective fungicide to avoid crop loss. Where still effective, it is critical to use the strobilurins in a manner that minimizes the probability or speed of future resistance development. Tank-mix them with sulfur (but not on sulfur-sensitive varieties) and make no more than two applications of all strobilurin (Group 11) products per year. CAUTION: DO NOT USE FLINT EXTRA OR *^NY† LUNA SENSATION ON CONCORD GRAPES (CAUSES INJURY). Note that Abound, QUADRIS TOP, †TOPGUARD EQ, and *^NYdexter max ARE extremely phytotoxic to certain apple varieties due to the active INGREDIENT AZOXYSTROBIN. See the ABOUND entry in Section 3.2 for information concerning use of these fungicides in Pennsylvania.

OR

*^NYDexter Max

3.2-4.25 lb

OR

Pristine

10-12.5 oz

Pristine, a product that combines a strobilurin fungicide with an unrelated fungicide (boscalid) has provided very good to excellent control in vineyards with significant strobilurin-resistant populations of the powdery mildew fungus and excellent control in vineyards where resistant populations are low. However, control of strobilurin-resistant individuals comes only from the boscalid component, which also is at risk for resistance development; hence Pristine should be used sparingly (maximum of two applications per year, and not sequentially or "back-to-back") and with caution where problems with strobilurins have been encountered. CAUTION: DO NOT USE PRISTINE ON CONCORD OR NOIRET GRAPES (CAUSES INJURY).

OR

Quadris Top 2.7SC

12-14 fl oz

Quadris Top is a product that combines azoxystrobin (the active ingredient in Abound) and difenoconazole, the Group 3 component in Revus Top and Inspire Super, which has very good to excellent activity against powdery mildew. Note, that at the lowest label rate of 12 fl oz/A, Quadris Top provides about 87% the dose of difenoconazole provided by the label rate (7 fl oz/A) of Revus Top and a dose of azoxystrobin equivalent to the lowest label rate of Abound. At 14 fl oz/A, Quadris Top provides a difenoconazole dose equivalent to that provided by the label rate of Revus Top. †Topguard EQ similarly combines azoxystrobin and a different Group 3 fungicide (flutriafol), the active ingredient in †Rhyme. However, at rates labeled for powdery mildew control, it provides lower doses of azoxystrobin and a less effective Group 3 fungicide than does Quadris Top. CAUTION: Do not use Quadris Top OR *^NYAPROVIA TOP on Concord grapes (causes injury). Note that Quadris Top and †TOPGUARD EQ ARE extremely phytotoxic to certain apple varieties due to the active ingredient azoxystrobin.

OR

†Topguard EQ 4.29SC

5-6 fl oz

OR

Endura 70WG

4.5 oz

Boscalid (the non-strobilurin component of Pristine) is also sold as a solo compound under the name Endura.

OR

Quintec

3-4 fl oz

Vivando is a powdery mildew-specific fungicide that has provided excellent control even in vineyards with significant strobilurin- and DMI-resistant mildew populations, and is a useful component in a rotational program for powdery mildew control. Prolivo is a similar product with an active ingredient in the same chemical class as that in Vivando, and should provide control similar to that of Vivando at the use rates on the label. Quintec is also a powdery mildew-specific product unrelated to any other grape fungicide on the market, and has provided very good to excellent control since its introduction as well. None of these materials should be applied more than three times per season, or more than two times in a row (ideally, not even twice in a row) before rotating to a different product active against powdery mildew.

OR

Vivando 2.5SC

10.3-15.4 fl oz

OR

Prolivo 300SC

4.0-5.0 fl oz

OR

Torino 120SC

3.4 or 6.8 fl oz

Torino, another powdery mildew-specific fungicide in a unique chemical family, first became available in most states in 2013 and is now registered in NY as well. It has provided good to very good control in repeated NY trials. The newest label allows a maximum of two applications per year at the 3.4 fl oz rate or one application per year at the 6.8 fl oz rate.

OR

*^NY†Luna Experience

6.0-8.6 fl oz

*^NY†Luna Experience combines fluopyram, a new "Group 7" fungicide similar to boscalid (the non-strobie component of Pristine) with tebuconazole, a traditional DMI (Group 3) fungicide. It has provided excellent activity against powdery mildew in multiple trials. The 6.0-fl oz rate is adequate for powdery mildew and for Botrytis during the bloom and post-bloom period, but the 8.6 fl oz/A is likely to be necessary for reliable black rot control unless another product active against this disease (e.g., mancozeb) is being used as well.

OR

*^NY†Luna Sensation

7 fl oz

*^NY†Luna Sensation is another newer product with the same fluopyram active ingredient, but combined with trifloxystrobin, a traditional strobilurin (Group 11) fungicide, instead of the tebuconazole found in *^NY†Luna Experience. The 7.0 fl oz label rate delivers a rate of fluopyram about equal to 8.6 fl oz on the *^NY†Luna Experience label. That same 7.0 fl oz rate also delivers about the same amount of trifloxystrobin as 3.5 fl oz of Flint Extra, adequate for good to excellent black rot control. CAUTION: Do not apply this product to Concord grapes or injury may occur.

OR

*^NYAprovia 0.83SC

8.6-10.5 fl oz

*^NYAprovia is a Group 7 fungicide; it is a solo product (not combined with another active ingredient). *^NYAprovia has provided excellent activity against powdery mildew in multiple trials, but has not provided reliable activity against any other disease.

OR

*^NYAprovia Top 1.6EC

8.5-13.3 fl oz

*^NYAprovia Top is a relatively new product that combines the active ingredient contained in *^NYAprovia plus an effective rate of the DMI fungicide difenoconazole: both active ingredients have considerable activity against powdery mildew.

CAUTION: DO NOT USE *^NYAPROVIA TOP ON CONCORD GRAPES (CAUSES INJURY).

OR

*^NY†Miravis Prime

9.2-13.4 fl oz

*^NY†Miravis Prime is a combination of a new succinate dehydrogenase inhibitor fungicide (SDHI, Group 7) and fludioxonil (Group 12). In NY and PA trials, *^NY†Miravis Prime has provided high levels of powdery mildew control. It is recommended that the total number of applications of Group 7 materials (*^NY†Luna Experience, Pristine, Endura, *^NYAprovia, and *^NY†Miravis Prime) be limited to no more than two per season, preferably not in sequence.

OR

Double Nickel LC

2 qt

Double Nickel is a biopesticide sold in both liquid and WDG formulations. It requires relatively short spray intervals and has provided fair to very good results in NY trials, depending on cultivar susceptibility. It has been most effective on moderately susceptible cultivars rather than highly susceptible cultivars such as Chardonnay.

or Double Nickel 55

1 lb

OR

Oso 5SC

6.5 fl oz

Oso and Ph-D are relatively new products that contain the same, older active ingredient. They have provided good to very good results in NY trials when rotated with strong conventional materials.

or Ph-D 89WDG

6.2 oz

OR

Regalia

1-4 qts (see label)

Regalia is a biopesticide that has provided fair to very good control of powdery mildew in NY trials, depending on disease pressure. It is likely to work best on less susceptible varieties or at times of year when pressure is low. Different rates are recommended depending on whether it is used alone or in a tank mix. Because Regalia requires 48 hours to activate plant defenses, applications need to start before infection. Regalia should only be considered for powdery mildew control during immediate prebloom in an organic spray program. It should not be relied on for conventional powdery mildew control during this critical window.

OR

ProBlad Verde

18.1-45.7 fl oz

ProBlad Verde is a biopesticide that has provided fair to good control of powdery mildew in NY and PA trials. ProBlad Verde is OMRI listed and should only be considered for powdery mildew control during immediate prebloom in an organic spray program. It should not be relied on for conventional powdery mildew control during this critical window. No more than 5 applications can be made during the season, and ProBlad Verde may be applied no more than twice before alternating with a product that has a different mode of action.

OR

Howler

2.5-7.5 lbs

OR

Romeo

0.23 lbs

OR

Stargus

0.5-4.0 qts

Stargus has shown to be more effective when tank mixed with Regalia.

Downy mildew

Do not delay sprays beyond this stage. This is a critical time to manage downy mildew.

*^NYDithane DF

3-4 lb

or Dithane M45

or Manzate Pro-Stick 75DF

or Penncozeb 75DF

OR

*^NYDithane F-45

2.4-3.2 qt

or *^NYManzate Max 4F

OR

*^NYDexter Max

3.2-4.25 lb

Label rates for *^NYDexter Max are 1.5 to 4.25 lbs/A. The 3.2 and 4.25 lb/A rates of this product contain the same amount of azoxystrobin as 10 and about 13.1 fl oz of Abound flowable (the low and mid-range of Abound rates for grapes, respectively), and the same amount of mancozeb as 3 and 4 lbs of the 75DF formulations of Dithane, Manzate, Penncozeb, and other mancozeb products.

OR

Captan Gold 4L

1-2 qt

or Captan 50WP

3-4 lb

or Captan 80WDG

2-2.5 lb

or Captan Gold 80WDG

1.25-2.5 lb

OR

Abound 2SC

*^NYSovran 50WG

Pristine

*^NY†Reason 500SC

Quadris Top 2.7SC

†Topguard EQ 4.3SC

not recommended for use alone

Resistance Warning: Downy mildew resistance to the "Group 11" fungicides (Abound, Flint Extra, Pristine, Quadris Top, *^NY†Reason, *^NYSovran, †Topguard EQ) has developed in multiple NY vineyards, causing significant crop loss. Thus, it is now risky to rely on these fungicides for control of downy mildew, particularly in the prebloom through early postbloom period while fruit are highly susceptible. When such resistance occurs, none of these fungicides will provide commercial control of the disease, and they must be combined with an effective rate of an unrelated fungicide to avoid potential crop loss. If using these materials, it is recommended that they be applied a maximum of two times per year for all Group 11 products combined. NOTE: The boscalid component of Pristine has no activity against downy mildew, so unlike powdery mildew, it will not provide control of this disease when populations of the fungus are resistant to the strobilurin materials. Similarly, the difenoconazole component of Quadris Top and the flutriafol component of †Topguard EQ have no activity against downy mildew, so will not help control strobilurin-resistant populations either. Although *^NYSovran has substantial activity against non-resistant downy mildew, it is significantly less effective than the other recommended materials. Therefore, *^NYSovran is not recommended on highly susceptible varieties even where resistance is not yet a problem. CAUTION: DO NOT USE PRISTINE, REVUS TOP, OR QUADRIS TOP ON CONCORD OR NOIRET GRAPES (CAUSES INJURY). Make no more than two applications in total of any strobilurin or related "Group11" fungicide per year. Note that Quadris Top, Abound, †topguard eq, and *^NYDexter max are extremely phytotoxic to certain apple varieties due to the active ingredient azoxystrobin. See the ABOUND entry in Section 3.2 for information concerning use of these fungicides in Pennsylvania.

OR

ProPhyt

2-4 pt

ProPhyt, Phostrol, and Rampart are among several different products that contain phosphorous acid (phosphonate, phosphite) and are registered for control of downy mildew. Phosphonate products provide limited

OR

Phostrol

2.5-5 pt

OR

Rampart

2-6 pt

protective and good to very good postinfection activity. The labeled rate ranges given are intended to account for variable canopy densities and disease pressure: The lower rates are appropriate during the prebloom period, but they should be increased as canopy volumes increase rapidly after fruit set and/or when significant post-infection activity is required. All three products contain roughly comparable levels of active ingredient (Rampart has 7% less than the other two), and appear to provide comparable levels of control when used at the same rateof product. Optimum spray intervals depend on weather conditions and rate applied; 10 days appears to be effective, whereas 14 days is too long under heavy disease pressure. Refer to the discussion on "phosphorous acid" in the "Fungicides" section. Resistance Warning: IT IS IMPORTANT THAT USE OF THESE PRODUCTS BE LIMITED TO A MAXIUMUM OF THREE APPLICATIONS PER YEAR, WITH NO MORE THAN TWO SEQUENTIAL APPLICATIONS, IN ORDER TO DELAY RESISTANCE DEVELOPMENT.

OR

Ridomil Gold MZ

2.5 lb

Resistance Warning: Resistance to Ridomil by the downy mildew organism develops easily and is widespread in countries where this fungicide has been used regularly. To reduce the risk of developing resistance: use no more than two total applications of Ridomil per season (MZ and Copper formulations combined); if making two applications in the same season, do not do so in consecutive sprays; and do not attempt "rescue" treatments with this material if an epidemic is in progress. The 2.5 lb rate of Ridomil Gold MZ provides the same amount of mancozeb as 2.0 lb of the 75 DF and 80WP formulations of Dithane, *^NYManzate, or Penncozeb. Thus, if protection is needed against black rot, Phomopsis, angular leaf scorch, or anthracnose, tank mix with an additional 1-2 lb/A of these mancozeb products (or with an equivalent amount of a flowable mancozeb formulation), or with the full rate of an alternative material.

OR

Revus 2SC

8 fl oz

Revus controls only downy mildew. Revus Top is a combination product that contains the active ingredient from Revus plus a second fungicide (difenoconazole, a DMI or Group 3 material) that controls powdery mildew, black rot, and anthracnose. Revus products have proven to be very effective under high disease pressure. All are absorbed by plant tissues, so are not subject to wash-off once this has occurred, and they provide both protective and limited post-infection activity. The post-infection activity of the Revus products is likely to be maximized by applying them with a penetrating surfactant). Revus is labeled for use at 7-day intervals but has given very good to excellent control when applied on V. vinifera cultivars at 14-day intervals in several NY trials, even under high disease pressure; it has a 14-day PHI. Revus Top is labeled for use at 14-day intervals, and also has a 14-day PHI. CAUTION: DO NOT USE REVUS TOP ON CONCORD GRAPES (CAUSES INJURY).

or Revus Top 4SC

7 fl oz

OR

*^NYGavel 75DF

2.0-2.5 lb

*^NYGavel is a relatively new fungicide labeled for control of downy mildew and other diseases. It is a combination of two active ingredients: (i) zoxamide, a downy mildew-specific fungicide and (ii) mancozeb. When applied at the labeled rate of 2.0-2.5 lb/A, it provides the same amount of mancozeb as 1.8-2.2 lb of standard 75DF formulations of other mancozeb products such as Dithane, Penncozeb, etc. Thus, for control of labeled diseases other than downy mildew, *^NYGavel should be tank-mixed with sufficient quantities of another mancozeb product to provide a mancozeb dosage equivalent to the labeled rates of 3-4lb/A of the 75DF formulations of such products. In a limited number of trials, *^NYGavel has provided fair to good control of downy mildew when applied at 14-day intervals.

OR

Ranman 400SC

2.1-2.75 fl oz

Ranman is a new fungicide unrelated to any other registered product. It is active only against downy mildew, primarily as a protectant but with limited post-infection activity. It has provided good to excellent control in NY trials, and has been most effective when tank-mixed with a phosphonate product to provide additional post-infection activity.

OR

*^NY†Zampro 4.4SC

11-14 fl oz

*^NY†Zampro is a new fungicide active against only downy mildew. *^NY†Zampro contains two downy mildew-specific active ingredients: (i) ametoctradin, representing a new class of chemistry (Group 45), with no other representatives currently registered; and (ii) dimethomorph, a Group 40 fungicide similar to Revus. It is assumed to have good protective activity; some limited post-infection activity, greater than that of Revus or Revus Top; and anti-sporulant activity. It is labeled for use at 7-10 day intervals but has provided very good to excellent control on V. vinifera cultivars when used at 14-day intervals in several NY trials, even under high disease pressure. The label allows a maximum of four applications per season, but we recommend no more than three applications of *^NY†Zampro and Revus (or Revus Top) combined, and no more than two sequential applications of these products (ideally, not even two applications in a row) before rotating to a product that does not contain a Group 40 material.

OR

Howler

2.5-7.5 lbs

Anthracnose

Only a common problem on a few specific varieties, particularly Marquette and Reliance and, to a lesser extent, Vidal Blanc (see the entry under Anthracnose in Section 3.1, Vineyard Disease Management, for a list of other susceptible varieties and the weather conditions favoring its development). Only Rally, Inspire Super, Revus Top, Mettle, Quadris Top, and Pristine are specifically labeled for control of anthracnose, although traditional broad-spectrum fungicides also have activity against it. Experience with controlling anthracnose in NY and neighboring states suggests that sprays of mancozeb, ziram, or captan applied to control Phomopsis and other diseases during the early season are likely to provide control of anthracnose during that period as well. A spray of lime sulfur that is applied thoroughly at the "delayed dormant" stage will also provide some control, and can be used to supplement conventional fungicide programs in problem blocks or to substitute for them to some extent when conventional fungicides will not be used (e.g., "organic" production systems).

Angular leaf scorch

Various mancozeb products applied according to label directions for Phomopsis, black rot, or downy mildew management also have given good control of angular leaf scorch. The difenoconazole products (Inspire Super, Quadris Top, Revus Top) are labeled for control of rotbrenner, the European "cousin" of angular leaf scorch, which is caused by a very closely related fungus.

Rose chafer

Apply when beetles appear, or 7-10 days before bloom. Localized problems are most commonly found on sandy soils. Severity varies widely from year to year.

*Danitol 2.4 EC

10.7-21.3 fl oz

OR

*^NYAssail 30SG

2.5 oz

Grape Phylloxera
(leaf forms)

Apply when first galls are forming; spray again 10-12 days later. Many varieties can withstand extensive galling.

OR

*Danitol 2.4EC

10.7-21.3 fl oz

OR

*^NYAssail 30SG

2.5 oz

OR

^*NY†Voliam Flexi

4.5 oz

Maximum of 9 fl oz per season.

OR

Movento

6-8 fl oz

Maximum of 12.5 fl oz Movento per season with 30 days between applications. Apply to foliage. Must be used with spray adjuvant/additive having spreading and penetrating properties. Do not use Induce on grape when fruit is present. Also, certain adjuvants are not compatible with some pesticides leading to phytotoxicity; consult labels.

OR

Senstar

12-16 fl oz

Maximum of 25 fl oz/A per season with 30 days between application. Apply to foliage. Note that Senstar has the same active ingredient as Movento (spirotetramat) and there are seasonal and per application limits for spirotetramat (0.195 lb and 0.125 lb resprectively). Must be used with adjuvant but see note above for Movento and the label concering compatability issues.

OR

*^NY†Platinum

8-17 fl oz

Not for use on grapes in NYS. Maximum of 17 fl oz per season. Systemic insecticide applied to the soil. Most effective when applied via drip irrigation.

Grape Phylloxera

(root form)

On susceptible cultivars, insecticidal control of root form grape phylloxera may improve vine health and vigor.

*^NYAdmire Pro

14 fl oz

Most effective when applied through drip system, although can be applied as side dressing followed by sufficient water to move product into root zone. Split into two applications of 7 fl oz/A, first in spring around prebloom and second 30 days later.

OR

Movento

6-8 fl oz

Maximum of 12.5 fl oz Movento per season with 30 days between applications. Apply to foliage. Must be used with spray adjuvant/additive having spreading and penetrating properties. However, do not use Induce on grape when fruit is present. Also, certain adjuvants are not compatible with some pesticides leading to phytotoxicity; consult labels.

OR

*^NY†Platinum

8-17 fl oz

Not for use on grapes in NYS. Maximum of 17 fl oz per season. Systemic insecticide applied to the soil. Most effective when applied via drip irrigation.

KEY FOR SECTION 5.2:

* Federal restricted-use pesticide*^NY Restricted-use pesticide in New York State

† Not for use in Nassau/Suffolk Counties.^ Not registered for use in New York State at press time