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	Observe pre-season limits on pesticide amounts (see label).
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 within 66 days of harvest. Copper fungicides should be mixed with hydrated lime. Copper fungicides may cause injury on certain varieties, esp. under cool, wet conditions.
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	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	Do not apply more than 24 oz of Nova per acre per season. 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.  REI for Imidan may render impractical for most growers.  See Table for REI and PHI information.
Grape leafhopper	Admire Pro OR Nexter 75WP OR Assail 70WP OR Assail 30SG OR Actara 25WDG OR Imidan 70WP OR malathion 8F 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 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.  REI for Imidan may render impractical for most growers.  See Table for REI and PHI information.
Grape phylloxera	Assail WSP OR Assail 30SG OR Movento 2SC	1.1 oz 2.5 oz 6.0-8.0 fl oz	Repeat 10-12 days after first spray if foliar form was a problem the previous year. Check labels for notes on injury to specific varieties.  Movento prebloom 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 80 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 per A) and may not be applied within 28 days before harvest.  Acramite may only be applied once per year.  Use 8 oz of Agri-Mek for low populations, 16 oz for severe.  Apply Nealta at first sign of infestation.
Japanese beetle, June beetle, wasps	Sevin 50WP OR Sevin XLR PLUS OR Surround 95WP OR Imidan 70WP OR Belay 50WDG OR Assail WSP OR Assail 30SG OR Actara 25WDG OR Avaunt 30DG OR Neemix 4.5 plus Trilogy	4 lb 2 qt 12.5-50 lb 2 lb 2-4 fl oz 1.1 oz 2.5 oz 1.5-3.5 oz 3.5-6.0 oz 7.0-16.0 fl oz 2% solution	Apply when beetles are common, especially on young vines. Bearing vines are most vulnerable to Japanese beetle feeding after veraison. Sevin may not be applied within 7 days of harvest.
Grape root borer	Isomate GRB	100 ropes	A mating disruption product, Isomate GRB, is now registered.  The label is available (Great Lakes IPM), as is the MSDS (Pacific Biocontrol).  The rope-style pheromone dispensers should be placed in the last week of June, at a rate of 100 ropes per acre.

Web Site Author: Douglas G. Pfeiffer