Pest & Disease Control

Comparison Chart listing Johnny's Fungicides/Bactericides/Algaecides, with recommendations for efficacy and preferred options for prevention/treatment of Staph, Scab, Salmonella, Sclerotinia, Rust, Rhizoctonia, Pythium, Powdery Mildew, Leaf Spot, Late Blight, Fusarium, and Downy Mildew. Product options include Mildew Cure, Hydrogen Dioxide, RootShield Home & Garden, Regalia, Liquid Copper Fungicide, GreenCure, MilStop, NuCop...

Use our comparison chart of Johnny's insecticides and molluscicides to determine safe, preferred methods for eliminating pest pressure from Cutworms, Flea Beetles, Japanese Beetles, Leafhoppers, Mealy Bugs, Mites, and more.

Use this chart to review options for fungicidal, insecticidal, or repellent agents effective against a variety of agricultural and home garden pests and diseases, from cutworms and flea beetles to mites and mealy bugs. Our chart lists both the indicated options that we offer as well as our preferred agents.

Use this chart to compare Johnny's preferred repellent treatments and prophylactic measures against crop damage caused by a range of organisms.

A full-color, downloadable and printable (PDF) comparison chart of row cover and insect netting options and uses.

Our Former Education Coordinator provides an overview of strategies to enhance, protect, and support beneficial insects with Johnny's Selected Seeds.

Here's a look at the results of Johnny's R&D basil team's extensive research on Prospera basil in relation to its basil downy mildew resistance.

Late blight (Phytophthora infestans) [Photo: Courtesy of Meg McGrath, Cornell University] occurs commonly each year in many places around the United States and the world. Learn how to recognize late blight. Tips are offered for proper identification of late blight in your garden.

Steps to take when you spot late blight affecting your tomatoes — options for treating, containing an outbreak, and preventing recurrence.

Watch how we distribute ladybugs at our Research Farm in Maine in this short tutorial.

Here is the full presentation of our Climate Adaptation for Vegetable & Flower Farmers webinar, followed by a Q&A session. The full video runs just approximately 1½ hours.

Here is the full, 72-minute presentation of our webinar on Growing Under Cover with four-season Canadian gardener, author, and educator Niki Jabbour. The presentation is followed by a Q&A session.