Disease	Chemical and Formulation	Rate per Acre	Remarks
Black rot	Ziram OR mancozeb 75DF OR Rally 40WSP OR Tebuconazole 45% OR Orius 20AQ OR Abound OR Sovran OR Flint OR Pristine OR Inspire Super OR Revus Top OR Luna Experience	4 lb 4 lb 3-5 oz 4 oz 8.6 fl oz 10.0-15.5 fl oz 3.2-5.6 oz 2 oz 8.0-12.5 oz 16-20 oz 7 oz 5-8.6 oz	This is a very important spray. Do not delaymore than 12-14 days after last pre-bloomspray. Note: Rally, Elite, Inspire Super, or Revus Top at the higher rates using 200 gal/A dilute sprays in combination with black rot predictor models provide excellent curative control.  There are many generic tebuconazole materials with varyious concentrations. Please refer to your label for specific application rate. Note 5-day REI for cane work for Luna Experience
Downy mildew	captan 50WP OR mancozeb 75DF OR Ridomil Gold Copper OR copper fungicides OR Gavel OR phosphorous acid OR Revus OR Presidio OR Forum OR Revus Top OR Ranman OR Zampro	4 lb 4 lb 1-2 lb see label 2.0-2.5 lb see label 8 oz 3-4 oz 6 oz 7 oz 2.1-2.75 oz 11-14 fl oz	Do not apply mancozeb or Gavel within 66 days of harvest. Copper fungicides may be mixed with hydrated lime to reduce risk of phytotoxicity, esp. in cool, wet conditions, when copper fungicides may cause injury on certain varieties.
Powdery mildew	Elite 45DF OR Orius 20AQ OR Rally 40WSP OR wettable sulfur (81.25% or 92%) OR Procure OR Pristine OR Quintec OR Endura OR Inspire Super OR Revus Top OR Mettle OR Vivando OR Luna Experience	4 oz 8.6 fl oz 3-5 oz 4 lb 4-8 oz 8.0-12.5 oz 4 oz 4.5 oz 16-20 oz 7 oz 3-5 oz 10.3-15.4 oz 3.2-6.4 fl oz	Very important spray. Use at 14-21 day intervals as needed. Use higher rates and/or shorter intervals (see label) under severe disease pressure.

 
 

Insects/Mites	Chemical and Formulation	Rate per Acre	Remarks
Grape berry moth (GBM)	Intrepid 2F OR Tourismo OR Entrust 2SC OR Delegate 25WG OR Altacor 35WDG OR Imidan 70WP OR Sevin 50W OR Avaunt 30DG	12-16 fl oz 10-14 fl oz 4-8 fl oz 3-5 oz 2-4.5 oz 2 lb 4 lb 5.0-6.0 oz	Where pest has been a problem in the past. Intrepid standard label recommends 4-8 fl oz; see supplemental Dow guidelines for higher rate.  The REI for Imidan may render it impractical for most growers.  See Table for REI and PHI information.
Grape rootworm	Sevin XLR PLUS	2 qt	Apply when beetles appear, usually in late June or early July. Second application may be necessary 10 days later.
Rose chafer	Assail 30SG OR Sevin XLR OR Imidan 70WP	2.5 oz 2 qt 1.3-2.1 lb	Variable pest status; may reach high numbers is some years.
Grape leafhopper	Admire Pro OR Nexter 75WP OR Assail 70WP OR Assail 30SG OR Actara 25WDG OR Imidan 70WP OR malathion 8F OR malathion 5EC OR Sevin 50WP OR Sevin XLR PLUS OR Applaud 70DF OR Portal 5EC	1.0-1.4 fl oz 5.2-10.67 oz 1.1 oz 2.5 oz 1.5-3.5 oz 2 lb 1.88 pt 3.0 pt 4 lb 2 qt 9-12 oz 1-2 pt	Apply if more than 5 leafhopper nymphs per leaf before Aug 1, and 10 per leaf thereafter.  The REI for Imidan may render it impractical for most growers.  Portal nonbearing vines only.  See Table for REI and PHI information.  The use of malathion should be delayed until fourth cover in blocks where spotted wing drosophila must be controlled, in order to observe maximum applications per season. When available, flowable (F) formulations pose less risk of phytotoxicity that emulsifiable (EC; oil-based) formulations. Avoid using captan and oil-based pesticides within 14 days of each other.
Grape phylloxera	Assail 70WP OR Assail 30SG OR Movento 2SC	1.1 oz 2.5 oz 6.0-8.0 fl oz	Spray when yellow crawlers first detected with hand lens or when galls first appear. Repeat 10-12 days after first spray if foliar form was a problem the previous year.  Assail may be applied twice per season.  Movento for prebloom use only on table grapes.
European red mite	Vendex 70WP OR Vendex 4L OR Nexter 75WP OR Acramite 50WS OR Agri-Mek 0.15EC OR JMS Stylet Oil OR Envidor 2SC OR Zeal WP OR Portal 5EC OR TriTek 80E OR Nealta	2 lb 1 qt 4.4-5.2 oz 0.75-1 lb 8-16 fl oz 1-2 gal 16-18 fl oz 2-3 oz 1-2 pts 1.0-2.0% solution 13.7 fl oz	Only if mites exceed 10/leaf (20/leaf on labrusca types), and more than minor bronzing occurs. Rotate acaricides. Use 8.8-10.67 oz of Nexter if twospotted spider mite is the predominant mite, or in vineyards with dense foliage.  Vendex is available in water-soluble bags (1-2.5 bags/A). Acramite may only be applied once per year. Use 8.0 oz of Agri-Mek for low populations, 16.0 oz for severe. Stylet Oil should be applied at 1.0-2.0 gal/A, every 10 to 14 days against mite eggs. Nealta should be applied at first sign of infestation; do not make more that one application of Nealta before.  Portal nonbearing vines only.

Web Site Author: Douglas G. Pfeiffer