GRAPE IPM CDFA EXAM STUDY SET
Eutypa Dieback (F)
-Prune late in dormant season
-Burn infected wood
-Make large cuts after rain - Tyhiophanate-Methyl
Verticillium Wilt (F)
-Ground fumigation
-Use of resistant varieties
-Solarization - sanitation
Crown Gall (B)
-Chemical treatments not effective, use sanitation methods
-Avoidance of injury - heat treating plant stock
(bacteria can live in soil for several years)
Armillaria Root Rot (Oak Root Fungus)
-Pre-plant ground fumigation during Sep-Nov with MeBr, Metam Sodium, Sodium
Tetrathiocarbonate
Cutworm
-No chemical effective, use predatory biocontrol (especially wasps)
-Weed removal late summer - Carbaryl, Spinosad
Twig and Branch Borer (beetle)
-Sanitation/cultural controls - beneficial nematodes
-Carbaryl
Dagger Nematode
-Wait 10 years for replanting - ground fumigation
-MeBr, Metam Sodium, 1,3 Dichloropropene
Pierce's Disease (B)
-Removal of infected vines - Chemical treatment
-Plant less susceptible varieties
-Insecticide around vector areas
Leafhoppers
-Biocontrol - Removing basal leaves
Omnivorous Leafroller
-Monitor to determine to spray
-Cultural Control - bury by tilling
Black Measles (F)
-Monitor older (>10 years old) with poor bud break in spring
-Liquid lime sulfur into holes/cracks or wax/tree holes (?)
Botrytis Canker (F)
-Remove Cankers
-Proper water, fertilization
-Good pruning techniques (wounds -->infection)
Downy Mildew (F)
-Proper irrigation and soil drainage
-Fungicides
-Copper sprays in wet spring
Eutypa Dieback (F)
-Prune late in dormant season
-Burn infected wood
-Make large cuts after rain - Tyhiophanate-Methyl
Verticillium Wilt (F)
-Ground fumigation
-Use of resistant varieties
-Solarization - sanitation
Crown Gall (B)
-Chemical treatments not effective, use sanitation methods
-Avoidance of injury - heat treating plant stock
(bacteria can live in soil for several years)
Armillaria Root Rot (Oak Root Fungus)
-Pre-plant ground fumigation during Sep-Nov with MeBr, Metam Sodium, Sodium
Tetrathiocarbonate
Cutworm
-No chemical effective, use predatory biocontrol (especially wasps)
-Weed removal late summer - Carbaryl, Spinosad
Twig and Branch Borer (beetle)
-Sanitation/cultural controls - beneficial nematodes
-Carbaryl
Dagger Nematode
-Wait 10 years for replanting - ground fumigation
-MeBr, Metam Sodium, 1,3 Dichloropropene
Pierce's Disease (B)
-Removal of infected vines - Chemical treatment
-Plant less susceptible varieties
-Insecticide around vector areas
Leafhoppers
-Biocontrol - Removing basal leaves
Omnivorous Leafroller
-Monitor to determine to spray
-Cultural Control - bury by tilling
Black Measles (F)
-Monitor older (>10 years old) with poor bud break in spring
-Liquid lime sulfur into holes/cracks or wax/tree holes (?)
Botrytis Canker (F)
-Remove Cankers
-Proper water, fertilization
-Good pruning techniques (wounds -->infection)
Downy Mildew (F)
-Proper irrigation and soil drainage
-Fungicides
-Copper sprays in wet spring
