A number of reports have come in that cereal aphid populations are increasing. Scouting cereal fields is advised. Natural enemies are present in many fields so I recommend using the Cereal Aphid Manager app to help you decide if a spray is required based on your aphid and natural enemy populations. The cereal aphid threshold is 12 to 15 aphids…
Tracey Baute April 22, 2020 309 Comments Off on Western Bean Cutworm 2020 Infosheets – Corn and Dry BeansIt is still too early to predict what western bean cutworm (WBC) might do this year but to help prepare, we have updated the WBC infosheets for 2020. 2020 WBC Infosheet for Corn 2020 WBC Infosheet for Dry Beans WBC activity was delayed in 2019, in step with the delay in growing degree day (GDD) accumulation. Some regions caught up…
Tracey Baute April 21, 2020 382 Comments Off on 2020 Canadian Bt Corn Trait Tables with Events and Resistance Status -English and FrenchThe Canadian Bt Corn Trait Tables have been updated for 2020 with additional information including a list of the Bt Events and Pest Resistance Status. English: Bt Corn Trait Table (April 2020) with Events and Resistance Status French: Tableau des caractères Bt (Avril 2020-Français) – Évènements transgéniques et résistances For information on which hybrids or products have obtained EU approval, visit…
Tracey Baute April 15, 2020 983 Comments Off on 2020 Great Lakes and Maritimes Pest Monitoring NetworkThe Great Lakes and Maritimes Pest Monitoring Network will be running again in 2020. We are monitoring for black cutworm (BCW), corn earworm (CEW), European corn borer (ECB), fall armyworm (FAW), true armyworm (TAW) and western bean cutworm (WBC) across the region and are providing an interactive real-time map and trap data dashboard that summarizes the trap results by pest….
Tracey Baute September 20, 2019 1189 Comments Off on Is Corn Earworm the Next Field Crop Pest for Ontario?It is August when this article is being written so we do not know what potential impact corn earworm (CEW) could have on our grain corn crop until harvest. Corn earworm was found in several fields in Ontario and Eastern Canada in late summer of 2018 and in 2019. They arrived in Ontario in June which is much earlier than…
Tracey Baute September 5, 2019 1019 Comments Off on Late Season Bean Leaf Beetle Activity in SoybeansBean leaf beetles (BLB) have reached the pod feeding threshold in some IP soybean fields this week. Despite the calendar date, both the beetles and soybeans are behind due to the delayed planting and slower accumulation of growing degree days. The first generation beetles coming out in July and August are attracted to later planted fields. But in more “normal”…
There is a long way to go yet before we reach crop maturity and a few insects are thriving right now in late planted soybeans and dry beans. Bean leaf beetles are a risk for both soybeans and dry beans. Reports are starting to come in of some activity at various locations. This is the first generation of adults; what…
Tracey Baute July 18, 2019 1926 Comments Off on Instructions on How to Enter Trap Data on the Great Lakes and Maritimes Pest Monitoring NetworkBy: Jennifer Birchmore, Senior Geographic Information Specialist, OMAFRA Click on this link. https://arcg.is/0K5rnG You will see a screen (below) with two options to choose how you want to enter the trap data; a) Through the browser on your desktop or laptop (left) or b) Through the Survey123 field app on your mobile or tablet device (right) What is the difference?…
Usually by this time in July, I am writing about how we are approaching peak flight for WBC in at least the southwestern counties. But with the delay in growing degree days this year, we have just caught the first WBC moth in Ontario this week, a month later than usual start catching them. Despite the late WBC activity, we…
Tracey Baute July 11, 2019 1364 Comments Off on Pest Watch – Potato Leafhoppers, Thrips and Spider MitesWhat a year! Goes from too wet to too dry. With young crops and little canopy yet, a few pests could become a problem quickly. Especially if hot dry conditions continue to stress the crop further. Scout fields frequently for these three pests; Potato leafhoppers, thrips and spider mites. Potato leafhoppers (PLH) are in high numbers in many counties. Both…
It’s that kind of year. Expect the unexpected or at least don’t be surprised when something doesn’t follow the rules. It’s a wet year. That usually makes us more disease prone than insect prone. And entomopathogens (fungus that kills insects) usually kick in. But we are also dealing with very delayed planting with small plants emerging, and lack of timely…
Tracey Baute June 19, 2019 913 Comments Off on A Good Time to Review Resistance Management Strategies for Bt CornOver the last few years a number of corn insect pest populations have developed resistance to at least one Bt trait used in corn hybrids. From western bean cutworm (WBC) resistance to Cry1F, corn earworm (CEW) resistance reported to Cry1Ab, Cry1A.105 and Cry2Ab2, to the latest confirmation of European corn borer (ECB) resistance to Cry1F in the Maritimes. Although companies…
It seems a bit cruel to point out some potential pest issues in a season like we have had where few crops are even in and might not even get in. But some crops are in the ground and at risk. There are a few pests that will take advantage of delayed crop emergence or be so limited in what…
Western bean cutworm trapping will be starting in early June. For those who are interested in trapping this year, I have provided a few resources below including Trap Set up and Monitoring Instructions, and a Trap Supply Checklist and Trap Supply Companies document. Those setting up trap sites are encouraged to include the traps on the Great Lakes Pest Monitoring…
Tracey Baute May 10, 2019 2136 Comments Off on European Corn Borer Trapping Instructions and ResourcesEuropean corn borer (ECB) is one of the pest included in the Great Lakes and Maritimes Pest Monitoring Network. Those interested in monitoring for ECB in field and sweet corn in the region are welcome to submit their trap data each week to the network to populate the real time interactive maps and see graphs summarizing their trap catches. Each…