Some Prairie pests coast in on wind, but several pest populations overwinter in the area. It’s these pests that can run in cycles, ebbing and flowing with conditions and predator populations. Knowing what pressure was like — and where — the year previously can be very helpful in anticipating pest problems. For this episode of… Read More
Tag: Dr. John Gavloski
Canola has the toughest start of any crop in Western Canada, if only because it’s the preferred food of striped and crucifer flea beetles that lie in wait for the first sign of green each spring. Flea beetle pressure has become so heavy that seed treatments and a foliar spray can, at times, not be… Read More
There are so many insects in the world that most of them likely haven’t been described yet. From some of the more common insects, such as the flea beetle, to a lesser-known such as a the beet webworm, this episode of The Agronomists tackles as much as we can in an hours’ time. Host Lyndsey… Read More
Your regular RealAg Radio host is off for the week, so it’s time for the second string to step up. Today’s host is Lyndsey Smith, and tomorrow, you’ll hear from Kelvin Heppner. On today’s show, you’ll hear: John Gavloski, provincial entomologist for Manitoba Agriculture and Resource Development, about National Insect Appreciation Day and how you… Read More
It’s Agronomic Monday on RealAgRadio! On today’s show, you’ll hear from: John Gavloski, entomologist with Manitoba Agriculture and Resource Development, for the latest on insect pressure; Shawn Conley of the University of Wisconsin, about unlocking the secrets of soybeans; Peter “Wheat Pete” Johnson, talking heat stress and timely rain; and, Justine Cornelsen with the Canola… Read More
Bertha armyworm larvae can come in many colours, ranging from green to brown-black, often later sporting an orange stripe along each side, and as they grow, so does the damage to the canola crop. According to the Canola Council of Canada, the worst damage tends to begin in July, as larvae moult through the last… Read More
By now you’re fully aware of the importance of monitoring insect pests in your canola. So, you’ve collected and assembled your sweep-net, now what? The standard technique for sweeping is one 180 degree sweep for every quick step through the canola field (accompanied by the odd fall, of course). Sounds simple (and perhaps slightly embarrassing), but… Read More
Have you been keeping an eye on the bertha armyworm monitoring trap numbers in your area? As we crawl closer to mid-July, it’s important to be aware of regional risks, and have a good understanding of proper scouting techniques and spray timing. “You’re going to have your best success spraying at night,” says John Gavloski, provincial entomologist with… Read More
In recent years, wheat midge has caused yield losses to fields across the prairie provinces, and has been blamed for wheat quality losses as well, including: aborted kernels, feeding lines and bran rupturing. So we know wheat midge is a significant pest, but did you have any idea that once anthers are present, the plant is no… Read More
It can seem like an efficient way to solve two problems at once — add an insecticide in with the fungicide on canola and, voila, all your pest troubles go away. But not so fast. While applying an insecticide when pest insect levels are at or above threshold may be the right move, adding an… Read More
It’s no secret that the striped flea beetle is a tougher opponent than the more common crucifer flea beetle. This canola pest tends to emerge earlier than the crucifer type and isn’t as easily killed by commonly used seed treatments. That does not mean, however, that the striped flea beetle is resistant to neonicotinoids, as… Read More