WBC Trap Catch Graphs

As mentioned yesterday, last week trap catches shot up significantly.  I’ve included a graph to show just how big of a flight we are experiencing this year compared to previous years. Ontario 2009 2010 2011 Averages I’ve also included an updated graph showing the counties that have been catching the highest average number moths per […]

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WBC Trap Counts Still Climbing!

If you can believe it, we have not reached WBC peak moth flight yet!  Trap counts continue to climb and some participants are having a hard time counting them all.  During this intense period, I do recommend that our trap participants check their traps more than once a week, simply to keep on top of […]

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Young Western Bean Cutworm Larvae

Some scouts are starting to notice tiny WBC  larvae that have hatched that crawling in the whorl or making their way down to the ear of the plants.  To help you know whether they are WBC larvae, here are some photos.  You can click on them to enlarge them. They start out with spots along […]

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Top Counties Catching WBC Moths So Far

Trap counts sent in to the network this week from last week’s moth catches indicate that moth flight increased dramatically.  And from tweets on Twitter and emails coming in from participants, even higher numbers are being caught this week in some traps.  So we haven’t quite reached peak moth flight yet here in Ontario.  The […]

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Western Bean Cutworm Activity Increasing

Despite the heat, western bean cutworm activity is increasing.  Trap catches over the past week have climbed significantly, indicating that peak flight is here or soon to be here.  The counties that have accumulated the most moth catches so far include Chatham-Kent (544), Lambton (256), Middlesex (244), Huron (206), Haldimand-Norfolk (138), Essex (155) and Elgin […]

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Coragen Insecticide Also Registered for WBC in Corn

I have been negligent in not mentioning the newest insecticide to be registered for WBC control in corn.  I have no excuse except that I been conveying product information through links to Publication 812, Field Crop Protection Guide and the product didn’t get registered for WBC control in time to make the printing deadline.  So […]

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Western Bean Cutworm Action Thresholds

Many questions are starting to come in regarding WBC.  Just to help clarify what the action thresholds for western bean cutworm are, here is a quick summary: In Corn: Scout 10 plants in a row in 10 areas of the field.  In non-Bt corn or transgenic corn that does not provide any protection against WBC […]

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This Week’s Insect Activity

There is a lot happening out there. I am sure I am not aware of half of the infestations that are going on but at least I will report on what I do know. Western bean cutworm – Hot spot egg mass locations continue to be in the Bothwell area with now fields in the […]

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WBC Moth Look A Likes

There is a bit of confusion out there amongst our trap participants who are trying to identify their catches.  Western bean cutworm (WBC) has a few look a likes.  Plus Large Yellow Underwing moths are flying around this year which is confusing matters.  Pay extra attention to the details that are on the wings. Here […]

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Lots of Insect Activity Still Out There

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.  […]

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