It's been quite a week and it's only Tuesday. Many of you are calling about one of these pest issues so hopefully I can help answer all of your questions here.
Grass Sawfly in Wheat: Once you start to see sawfly feeding (see previous blog for pics and details) the feeding damage is nearly done.... Continue reading
Lots of reports are coming in of black cutworm and armyworm damage in Ontario.
Black cutworm has been found feeding in numerous corn fields and even an alfalfa field. Locations that I know of so far include fields near: Parkhill, Watford, Embro (alfalfa field), Renfrew County, and parts of West E... Continue reading
States to the south of us have been reporting intense black cutworm moth captures over the last few weeks. The continuous storm fronts that keep moving across Ontario could be carrying some of these moths to us. In addition, rain has kept us from getting into the fields to manage the annual weed... Continue reading
I am still hearing from people who are looking for WBC egg masses on corn leaves. But unless they are scouting very late corn that is not in tassel yet, most of the WBC will already be larvae on the tassel or more likely in the ear. So focus on scouting the ears and tassels now.
But there are o... Continue reading
I was sent a message today from Deb Campbell of Syngenta Seeds, that they are finding fall armyworm in corn in Grey, Perth, Oxford, Huron and Simcoe counties. Infestations are low and the larvae are small but it is something to keep an eye on. There could be fields with heavier infestations.
Al... Continue reading
There have been a number of reports of heads being clipped in wheat. Some of it can be blamed on armyworm, but some cases (at least in Rodney) have been due to larvae known as grass sawflies. These larvae are green to green-yellow in colour with a yellow brown head. They look like caterpillars... Continue reading
I have heard reports now from a few different locations of both wheat heads being clipped and leaf feeding taking place in corn in southwestern Ontario. This is a good sign that true armyworm is present.
Both wheat and corn fields need to be scouted to determine if armyworm is present. Here is ... Continue reading
Thanks to Nick Zwambag for commenting on here that they are seeing cabbage seedpod weevil activity in winter canola near thamesville earlier this week. But with this weather, little can be done about it and fortunately the cool temps should slow them down a bit. Scout once this front goes thro... Continue reading