Until recently, there wasn’t data about the mental health of Canadian farmers. Dr. Andria Jones-Bitton and PhD Candidate Briana Hagen of the Ontario Veterinary College are changing that. Please consider making time to participate in this worthwhile project. Read on for how to take part.
2016 turned out to be a bad year for Lewis mite (Eotetranychus lewisi) in poinsettia. Although it’s too early to say how 2017 is going to go, you should be considering possible preventative measures THIS WEEK for Lewis mite, especially if you have a history of Lewis mite with your cuttings. Treatment of this pest is more difficult later in the crop (though not impossible). Keep reading for biological and chemical control options for this pest.
Lewis mite, a species of spider mite, can cause major crop losses if left uncontrolled.
Investigating biocontrol options for our industry is always important, given the lack of registered insecticides in this country. Currently, we are relying heavily on two closely related chemicals – Beleaf (flonicamid) and Endeavor (pymetrozine) – for control of the foxglove aphid (Aulacorthum solani). If our battle with thrips (and Bemisia whitefly) have taught us anything, it’s to be prepared for chemical failure.
Unfortunately, biological control of foxglove aphid has been challenging so far. For example, my own research showed that Aphidoletes, a “generalist” aphid predator, actually has lower preference for foxglove aphid than other species, and is less effective for this pest. However, a long-term project by Dr. Michelangelo La-Spina (Vineland Research and Innovation Centre) has found some results that get us closer to being able to control foxglove aphid WITHOUT resorting to pesticide sprays.
One way YOU can help move this research forward is by filling in this quick, 10 question survey if you’re a grower (even if you’ve never had problems with foxglove aphid before). Read on for more details on exactly what Dr. La-Spina has found.
Juvenile and adult Bemisia whitefly (Bemisia tabaci). There are 2 biotypes of this pest (“B” and “Q”) which look identical; however, their response to chemicals is very different.
Poinsettias cuttings are here! Unfortunately, they will likely arrive with unwanted “presents” in tow. This includes Bemisia whitefly, a pest that can be hard to control with natural enemies and can ALSO be resistant to pesticides. So what’s a grower to do?
By implementing some preventative measures RIGHT NOW, and understanding WHEN it’s appropriate to spray, you can help save yourself a lot of headaches later.
Posted in Bemisia whitefly, biological control, dipping cuttings, imported cuttings, Pest control strategies, Poinsettia, Preventative treatments, Registered pesticides, Whitefly
Tagged Bemisia control, chemicals for Bemisia, how to control insects in poinsettia, pesticides for Bemisia Ontario, pesticides for whitefly Ontario, poinsettia spray program, silverleaf whitefly control, silverleaf whitefly poinsettias, whitefly control poinsettia
Greenhouse Canada’s Greenhouse Grower Day is just over a week away! The 2017 event will be hosted at the Holiday Inn and Suites in St. Catharines, Ontario on Wednesday June 21st from 8:30am to 3:30 pm.
The “Seven Habits of Successful Growers
” theme will tackle a variety of topics, ranging from crop lighting and water treatment, to labour management and automation. Other talks will look at the ingredients of a successful family business, the importance of long-range planning, and the keys to marketing to millenials. There will be lots of networking time and opportunity to talk to vendors too.
Pre-registration is encouraged to avoid lineups at the door. (But walk-ins are always welcome!)
Interested in seeing the latest IPM research from around the world and having your voice heard on important research topics? Then come network with the nerds on June 7th!
There will NOT be registration at the door so please register by 5pm TOMORROW at http://iobccanada2017.ca/product/grower-day/ . Only a $25 cost and lunch is provided.
NOTE: Lunch will be served at 1pm (not 12:30 as indicated on the flyer).
Thinking about taking a course this summer? Our friends at Michigan State University are offering three online courses this summer, and all three look to be great resources. You get three months to complete the course at your own pace, from June 1st to August 31st. The courses are good for new growers or as a staff refresher. Continue reading