Knowledgebase
spray schedule #297982
Asked January 24, 2016, 1:26 PM EST
Baltimore County Maryland
Expert Response
We recommend these Extension websites, but with these caveats:
· pesticides labeled and available in other states may not be labeled for home fruit and available in MD.
· spray schedules assume that specific pests and diseases are active and need to be controlled. For example, someone following Va Tech’s schedule to the letter would be spraying every crop at every growth stage. You will not want to do that much spraying, because of cost, time, and environmental health. Stay focused on identifying and managing the most serious problems, such as brown rot, plum curculio, Japanese beetles, etc. Target your efforts.
https://www.extension.purdue.edu/extmedia/id/id-146-w.pdf -excellent
pub with spray schedule
that is very close in pests and timing to UMD's recommendations. Be aware that they list a few
materials that we cannot recommend because they are not registered in MD:
thiophanate methyl (Cleary’s 3336) and gamma cyhalothrin (pyrethroid). Also,
they recommend esfenvalerate, a pyrethroid that is highly toxic to bees and
other pollinators and natural enemies. This insecticide should be restricted to
before-bloom use.
http://www.oardc.ohio-state.edu/fruitpathology/organic/default%20organic.htm
organic disease management for small fruits. Although this is aimed at commercial producers it is excellent and appropriate for backyard growers
http://extension.psu.edu/plants/gardening/fphg
Penn State’s Fruit Production for the Home Gardener is excellent. It has rich IPM info- pest descriptions and lifecycles, appearance, best time to control, lists of pesticides, etc. Everything but spray schedules.
http://www.virginiafruit.ento.vt.edu/SprayGuide/HomeFruitSprays.html
Va Tech home fruit spray schedule. Pets and timing are fine. The issue is once again with actual labeled products.
http://www.caf.wvu.edu/kearneysville/organic-apple.html
Ohio State’s Disease Management for Organic Apples- aimed at commercial audience but excellent for homeowners.
http://www.caf.wvu.edu/kearneysville/ThinkingOrganic.htm
Solid information on organic pest management in apples.
http://www.gardening.cornell.edu/fruit/homefruit/homefruit.pdf
General small/tree fruit information – no spray schedule
ECN