Sign Up for Emails!

Plant Diseases and Disorders


There are some common problems that may occur with your plants. Varying temperatures, weather patterns, and disease-causing insects can all affect your garden. We encourage our gardening friends to regularly inspect your garden for pests and anything that doesn't look normal on your plants. In some cases, it can be solved relatively easily. Please see our guide, below, and if you feel that your plants may be suffering, contact your county's Cooperative Extension (a free service) for further advice.
Blight - Early Tomatoes
Blight - Late Tomatoes, Potatoes
Blossom End Rot (BER)* Tomatoes, Peppers
Downy Mildew Cucumbers, Squash, Pumpkins, Melons, Gourds, Luffas
Leaf Spot  
Powdery Mildew Onions, Artichokes, Cucumbers, Squash, Pumpkins, Melons, Gourds, Luffas
Scab Cucumbers, Squash, Pumpkins, Melons, Gourds, Luffas
Bacterial Wilt Cucumbers, Squash, Pumpkins, Melons, Gourds, Luffas
Rusts Tomatoes, Soybeans
Black Spot Basil, Rosemary, Parsley, Sage
Splitting Tomatoes
Verticillium Wilt Tomatoes, Eggplant, Peppers
Fusarium Wilt  
*Blossom End Rot (BER) is caused by 3 factors: (a) lack of calcium & magnesium to the plant, (b) extreme rapid growth of the plant, and (c) drought conditions/ infrequent watering. Dolomite adds a calcium and magnesium source and, by keeping the water reservoir filled, there is a constant supply of water to the plant. If you notice dark/ black, rotting spots on newly set fruit, simply pick those off and discard. Mix ¼ cup of hydrated lime (or pickling lime) with 1 gallon of water and add to the reservoir via the water fill tube. Do this just 1 time only. It will take a couple days, but this will cure the BER. In that time, you may still see some affected fruit, so just pick those off. Picking them off will ensure the plant puts its energy into producing good fruit, rather than wasting energy on a rotted fruit that can't be consumed.