Crop Protection
When plants come under attack from invading bacteria, viruses or fungi, they mount a two-pronged response, producing both offensive chemicals to kill invaders and defensive chemicals to prevent infestations from spreading. Now, scientists at Stanford have used a type of chemical vaccine to switch on this plant defense system to prevent localized infections from becoming contagions, a possible first step toward helping harvests ward off infections.
Pests are perennial problems in the greenhouse, but as technology continues to evolve, so do various ways of eradicating pests. 
The tale of the European corn borer (ECB), Ostrinia nubilalis, is nothing short of interesting. As the name suggests, ECB is a pest of corn and is present in all major corn growing regions in North America and Europe.
The control of pests is essential for greenhouse growers. Most implement an integrated pest management (IPM) program, incorporating both biological and chemical pesticide use.
It’s been almost five years since the cucumber green mottle mosaic virus (CGMMV) was first reported in Greenhouse Canada, but that doesn’t mean growers should be any less vigilant.
Pest management is a critical part of any commercial greenhouse. Despite its importance, tracking its delivery and progress can still be a challenge.
We all know what they say about assumptions. When diagnosing crops with little tolerance for damage, it’s important not to let preconceived notions lead you down the wrong path. Here are some common mistakes to avoid making when diagnosing insect and disease issues in ornamentals.
There might be a weevil trapped on your yellow sticky card, but whether it’s the dreaded pepper weevil calls for a closer look.
Biofungicide Regalia Maxx has received label approval from Canada’s Pest Management Regulatory Agency, for the suppression of powdery mildew and gray mold in indoor cannabis crops.
Basil downy mildew is a relatively new disease of both field and greenhouse basil in Ontario. The disease requires diligent management in the greenhouse. Diseased plants that enter from the field or garden can contribute to epidemics if weather conditions permit. The incidence of diseased plants in retail locations has decreased in the past few years due to better management in greenhouses.
The Pest Management Regulatory Agency (PMRA) recently announced the approval of an URMULE (user requested minor use label expansion) registration for Milstop foliar fungicide for suppression of powdery mildew on field and greenhouse mint, as well as greenhouse-grown lettuce, in Canada.
The Pest Management Regulatory Agency (PMRA) recently announced the approval of URMULE (user requested minor use label expansion) registrations for Confine, Rampart and Phostrol Fungicides for suppression of downy mildew and pythium root rot on greenhouse-grown basil in Canada.
Pythium species are fungal-like organisms (Oomycetes), commonly referred to as water molds, which naturally exist in soil and water as saprophytes, feeding on organic matter. Some Pythium species can cause serious diseases on greenhouse vegetable crops resulting in significant crop losses.
Horticultural crops in Canada, although grown on a smaller acreage than field crops, are of increasing importance to the agricultural economy. Greenhouse tomato production in Ontario contributes over $354 million annually, but insect and spider mite pests reduce the yield of the tomato crop and are the target of many management programs.
From October 4, 2017 to January 8, 2018, a research project was conducted at the Niagara College, Niagara-on-the-Lake greenhouse to evaluate the efficacy of Silamol, a silicon product designed to help reduce the negative impact of biotic and abiotic stress in plants.
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