Managing Insect, Diseases, and Animal Pests

What is wrong with my Chestnut Crabapple tree?

Question: Our young Chestnut Crabapple has been hit by two things at once.  At the base, the trunk looks and feels rotted out when you scratch it a bit as if a fungus or borer has gotten in and is damaging it. And up in the foliage, I noticed one or two of the leaves […]

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What do you suggest to eliminate Peach Leaf Curl?

Question: I observed Peach Leaf Curl on Nectar, White Lady, Peregrin, and Indian Free peach trees. I have had this disease for the last several years. Last December, I sprayed these trees with a solution of Liqui-Cop at a rate of 6 tsp/gal of water. I needed to wait this late to get the 90% […]

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Is there anything I can do to treat Apple Cedar Rust?

Question: I believe that my tree has Apple Cedar Rust.  Is there anything I can do to treat it? Answer: Katherine Garland, Horticulturist You are correct in that it’s a type of Gymnosporangium rust, but it could be one of three distinctly different species of rust. Without a sample to look at more closely, I can’t […]

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What are the best blight resistant tomatoes for Maine climate?

Question: What are the best blight resistant tomatoes for our Maine climate? Answer: Pamela Hargest, Horticulture Professional I wouldn’t say there is one tomato that has the best blight resistance since there are several factors to consider, such as what’s available to you locally. If you plan on purchasing tomato seedlings locally, I’d recommend connecting […]

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How can I get an insect identified?

Question: How can I get an insect identified? Answer: Pamela Hargest, Horticulture Professional You can mail in a sample to our lab. Here are instructions for how to do so: https://extension.umaine.edu/ipm/submitting-insect-specimens/

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What are some effective treatments for weevils?

Question: Last season, leaves on some of my rhododendrons show notching that may be due to root weevils.   What stage of growth are weevils at now and what is effective treatment for this stage? Answer: Katherine Garland, Horticulturist Our entomologist shared that it’s either the Black Vine Weevil or the Raspberry Weevil doing the damage. […]

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How do I keep my neighbor’s cat out of my garden?

Question: I need help keeping cats out of my gardens. My neighbor’s cat uses my front door gardens as his litter-box. I want to plant herbs in these beds as the sun is right.  Help! Answer: Katherine Garland, Horticulturist   I’m sorry to hear of your feline troubles. Keeping cats out of the garden is not […]

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How can I control voles in my garden and in my yard?

Question: How can I control voles in my garden and in my yard? I live in a develop where they are rampant. I am blaming them for eating my tulip and daffodil bulbs as well as vegetable roots. Answer: Abi Griffith, Horticulture Community Education Assistant Sorry to hear about your vole issues! You could check […]

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What creature is eating the lettuce in my greenhouse?

Question: I have some small creature eating my lettuce. It gets into my greenhouse, which only a small rodent could do. It eats a fair amount of lettuce down to almost ground level. The larger creatures that also devour what I grow — porcupines and skunks — I am able to trap and relocate.   I […]

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