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Figure 1. Caterpillar or sawfly? Accurate identification of the pest is critical when using bio-insecticides. Bt products will control small caterpillars, but would be ineffective on the sawfly larva shown in this photo.
Bio-insecticides in Greenhouse Ornamentals - Articles Articles

Bio-insecticides in Greenhouse Ornamentals

Lee Stivers, Ruth Benner

Bio-pesticides, also known as biological pesticides, are defined by the US EPA as pesticides derived from natural materials such as animals, plants, bacteria, fungi, and certain minerals. More
Which Pesticide License Does Your Business Need?
Which Pesticide License Does Your Business Need? - Articles Articles
In Pennsylvania, Green Industry professionals who use pesticides need to understand the Pennsylvania pesticide laws and how to comply with them. More
Does Your Green Industry Business Need a Registered Technician? Does Your Green Industry Business Need a Registered Technician? - Articles
In Pennsylvania, anyone making pesticide applications to land that they do not own or lease is required to have at least one Certified Pesticide Applicator. More
Upper surface of affected shrub rose showing round leaf spots with an orange center on yellowing leaves. Image: R. Benner, Penn State
Rose Rust in the Landscape - Articles Articles
Rose Rust is uncommon on ornamental roses in Pennsylvania but it does occur, especially in mild, wet spring conditions. More