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Organic orchard #926183

Asked March 17, 2026, 3:47 PM EDT

Would like to know appropriate sprays for apple, peach, nectarine, cherry, apricot, strawberry and grape plants. Have been using Copper/winter oil or Neem, B subtilis, sulfur , BT and pyrethrum for control. Still having issues with brown spot on stone fruit and grey mold on strawberries. As well as issues with plum curculio and apple maggot. Not sure if there is any other sprays or if it’s my spray schedule.

Rockingham County New Hampshire

Expert Response

Hi, Thomas -

Thank you for reaching out to the UNH Extension Infoline!

UNH Extension has a great deal of information available on fruit trees. Are you a "backyard grower," or is this a commercial orchard? We want to make sure you are connected with the right specialist and resources for your needs.

Thank you, and we look forward to working with you to answer your questions!

Thank you for contacting the Infoline, a service of UNH Cooperative Extension. Replied March 18, 2026, 10:40 AM EDT

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