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Pesticide Chart
When all else fails here is a cross reference guide as to
what organic pesticide will treat which insect
X = yes this will work * = adding isopropy
alcohol will increase the effectiveness of selection
Use alcohol at a rate of 8 ounces to
1 quart of dilute mixture. When using test a small portion of plant first
to see
if it is sensitive to alcohol. DO NOT use alcohol sprays on apple trees.
| Insect | Peak | Host | Alcohol Spray |
BT | Citrus Oil |
Dormant Oil |
Pepper Wax |
Insect Soap |
Neem Oil |
Pheromone Traps |
Starch Spray |
Pyrethrin | Rotenone | Ryania | Sabadilia | Summer Oil |
Quassia |
| Ants | All | Any | X | no | no | no | no | X* | X | no | X | X | X | no | no | X | |
| Aphid | All | Any | X | no | X | X | X | X* | X | no | X | X* | X | no | X | X | X |
| Bagworm | May-June | Any | X | no | no | no | no | X | X | X August | no | no | no | no | no | no | X |
| Blister Beetle |
June-July | Any | X | X* | no | no | no | no | X | no | no | X* | X | no | X | no | no |
| Borers | Late Spring | Birch Locust Ash Shrub | no | X* Inject in hole |
no | no | no | no | no | X | no | X | X | no | no | no | no |
| Boxelders | Late | Maple Ash | no | no | no | no | no | no | X | no | no | no | no | no | no | no | no |
| Cankerworm | Spring | Trees | no | X | no | no | no | no | X | no | X | no | no | no | no | X | no |
| Caterpillar Misc. | Any | All | no | X | no | no | X | X* | X | no | no | X | X | X | no | no | X |
| Codling Moth |
Spring | Apple Pear Quince Walnut |
no | no | no | no | X | no | X | X | X | no | no | no | no | no | no |
| Insect | Peak | Host | Alcohol Spray |
BT | Citrus Oil |
Dormant Oil |
Pepper Wax |
Insect Soap |
Neem Oil |
Pheromone Traps |
Starch Spray |
Pyrethrin | Rotenone | Ryania | Sabadilia | Summer Oil |
Quassia |
| Curculio (weevil) |
April-May | Apple Pear Quince |
no | no | no | no | no | no | X | no | no | X | X 5% mix |
no | X | no | no |
| Beetles
Misc. |
Early Spring | Elm Rose Spruce Etc. |
no | X B.Poppilae |
no | no | no | no | X Larva |
X Elm Leaf Beetle | X | X | X* | no | no | no | no |
| Fungus Gnats | Fall Winter | Any | X | Bt israelensis |
no | no | X | X | X | no | some | X | no | no | no | no | some |
| Galls, Midge | Early Spring | Aspen Locust Spruce etc. |
no | no | no | no | X? | X | X | no | no | no | no | no | no | no | no |
| Grasshopper & Locust | Late Spring to hard frost | Any | no | no | no | no | X | no | X | no | no | no | no | no | X | no | no |
| Leaf miners, rollers & hoppers | Spring | Leaf | no | no | no | no | X | X* | X | X | X | no | X | X | no | no | no |
| Insect | Peak | Host | Alcohol Spray |
BT | Citrus Oil |
Dormant Oil |
Pepper Wax |
Insect Soap |
Neem Oil |
Pheromone Traps |
Starch Spray |
Pyrethrin | Rotenone | Ryania | Sabadilia | Summer Oil |
Quassia |
| Mites | Spring & hot dry weahter | Shrub | X | no | X | X | X | X | X | no | X | X | X | X | no | X | no |
| Slug | Seasonal | Any | X | no | no | no | no | no | no | no | X | no | no | no | no | no | X |
| Scale | Active stage late May | Tree shrub | X | no | no | X | no | X | no | no | no | X | X | no | no | X* | no |
| Gypsy Moth | April- early June | no | X BT poppiliae | no | no | no | no | X | X | no | no | no | X | no | no | no | |
| Thrips | Spring | any | no | no | no | no | no | no | X | no | no | X | X | no | no | X* | no |
| Whitefly | Spring Summer | any | X | no | no | no | X good | X | X good | no | X | X | no | no | no | X | no |
Copyright 1999-2001 http://www.ghorganics.com/ All Rights Reserved
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