Biocontrols
Let’s face it, chemicals have been around for some time now, and have allowed us to successfully manage pests through each growing season. But it’s telling, that we still have to battle the same suite of pests and diseases in greenhouse crops, only now these are resistant to many of the chemicals that have been used against them.
The pepper weevil, Anthonomus eugenii is one of the most important pests of pepper crops in North America. Currently, there are no commercial products that can target immature stages of the pepper weevil, however strategies including biological control, may be useful in attacking these life stages and reducing population levels.
Insect pests don’t always die by flipping over with six legs in the air. In nature, the process is sometimes an inescapable decline due to an overwhelming infection, followed by loss of appetite, disinterest in reproduction, lethargy, and then death. Science has learned to isolate, select and mass-produce some of these infectious microbes.
When we started our project to develop a more effective IPM strategy against foxglove aphids, one of the first questions we tried answering was “Why doesn’t Aphidius ervi provide good control?” Growers and IPM specialists have previously reported that this aphid parasitoid does not seem to be effective in controlling the relatively “new” aphid pest - foxglove aphid.
December 2017 – Cannabis sativa has been used medically, recreationally and spiritually throughout the world for about five millennia now. In recent times there has been an increasing trend of the public being more accepting towards the use of cannabis as a medical treatment option for various illnesses.
October 2017 – This is the last part in a six-part series of articles on thrips (and other pests) integrated pest management, where we provide practical application tips and tricks, information on new technologies and how it all fits within an overall IPM program. Each article is accompanied by a short video demonstrating a technique or principle.
October 2017 – The pepper weevil has become a bigger nightmare for pepper growers in Leamington area. The swarming of pepper weevil in the Leamington area might be a result of the milder winters and more year-round greenhouse production, inter-planting schemes and lack of attention on greenhouse cleaning procedures that enhance the survivorship of pepper weevil. Ignoring just one adult weevil is a reason to take out an entire crop.
September 2017 – Aphids can cause significant economic losses on ornamentals by causing deformities, reduced size, or by merely being present on the plants. Such presence affects the aesthetic value of infested plants, thereby reducing or preventing their marketability.
September 2017 – I’m sure growers sometimes wonder what the heck scientists are doing behind closed doors all day in our labs and research greenhouses. Since it often takes several years of repetitious experiments to conclusively find an answer to a problem (or even longer to bring a new product or process to the market), I’m sure that, from the outside, it sometimes seems like things are at a standstill.
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