Tracey Baute – Field Crop News

Areas of Focus • Collaborate on applied research and demonstration projects to validate/determine practical integrated insect management solutions • Monitor for and implement strategies for new invasive species • Co-developer of the Aphid Advisor App • Co-author of Publication 812, Field Crop Protection Guide

Scouting Guidelines to Determine Possible Rootworm Resistance

Tracey Baute August 20, 2020 532 Comments Off

Baute Bug Blog

Scouting for corn rootworm injury is important to detect potential resistance to rootworm Bt traits and to plan management options for the next growing season. It is especially important to report any fields showing signs of suspected resistance to your corn agronomist and the provincial entomologist. Rootworm larvae feed below ground on corn roots from late May until late July….

Continuous Corn Growers Should Check Fields for Rootworm Resistance to Bt Hybrids

Tracey Baute August 20, 2020 823 2 Comments

Baute Bug Blog

Canadian Corn Pest Coalition News Release: Corn rootworm (CRW) has historically been one of the most important pests of corn in Canada and can cause extreme economic loss and increased management costs. High CRW pressure in Ontario in 2020 is challenging current Bt corn rootworm hybrids and several growers of Bt rootworm hybrids are reporting unexpected injury by CRW to…

Bean Leaf Beetle Pod Feeding Activity

Tracey Baute August 14, 2020 299 Comments Off

Baute Bug Blog

Reports have been coming in about pod feeding from bean leaf beetle (BLB) in IP, food grade and seed soybeans. Pod damage on crush beans typically does not warrant control. Foliar feeding (defoliation) is rarely the concern this time of year. But BLB can feed on the surface of the pod which exposes the seed inside to pod diseases that…

Update on WBC Trap Counts for This Week

Tracey Baute August 13, 2020 329 Comments Off

Baute Bug Blog

Here is the latest update on where the trap catches are for western bean cutworm in the region based on trap site data entered into the Great Lakes and Maritimes Pest Monitoring Network. Peak flight for Ontario and most other states and provinces on the network (except Michigan) occurred during Week 11 (Aug 3-9) (see Fig. 1). Trap catches are…

Western Bean Cutworm Catches are Climbing

Tracey Baute July 29, 2020 665 1 Comment

Baute Bug Blog

Before I talked about the WBC trap data, I want to thank everyone who set up a trap this year and are entering their data into the network. Despite COVID-19, there are more than 1000 WBC traps in the system! That is a record and helps us figure out what the flight patterns are. Now for the trap results. We…

Seeing Lots of Rootworm Adults in Rootworm Bt Fields? Let Us Know!

Tracey Baute July 28, 2020 437 Comments Off

Baute Bug Blog

Corn rootworm adults emerged a few weeks earlier than usually and are quite abundant this year. This is particularly concerning when the adult populations are high in corn on corn fields planted with a rootworm Bt hybrid. This could be an indication that rootworm populations have developed resistance to the rootworm Bt traits involved. To know for sure if your…

Silk Clippers – Watch Out for These Three Culprits

Tracey Baute July 21, 2020 1312 3 Comments

Baute Bug Blog

Many reports are coming in about silk clipping in corn. Three main culprits include corn rootworm beetles, Japanese beetles and redheaded flea beetles. Regardless of which one is doing it, it comes down to when and where they are clipping and by how much. Corn silks can grow as much as an inch or more a day, though most of…

Spidermites Are Thriving in 2020 – Be Vigilant

Tracey Baute July 9, 2020 1082 1 Comment

Baute Bug Blog

Reports have already come in of a few soybean fields that have reached threshold and need to be sprayed this week for spider mites. This hot, dry weather at the start of wheat harvest is the perfect scenario for significant spider mite infestations to move into soybeans, dry beans and possibly even the corn crop. Spider mites are currently on…

Cereal Aphid Alert – Scout Your Cereals!

Tracey Baute May 27, 2020 557 Comments Off

Baute Bug Blog

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…

Western Bean Cutworm 2020 Infosheets – Corn and Dry Beans

Tracey Baute April 22, 2020 581 Comments Off

Baute Bug Blog

It 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…

2020 Canadian Bt Corn Trait Tables with Events and Resistance Status -English and French

Tracey Baute April 21, 2020 567 Comments Off

Baute Bug Blog

The 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…

2020 Great Lakes and Maritimes Pest Monitoring Network

Tracey Baute April 15, 2020 2222 Comments Off

Great Lakes and Maritimes Pest Monitoring Network

The 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….

Is Corn Earworm the Next Field Crop Pest for Ontario?

Tracey Baute September 20, 2019 1385 Comments Off

Baute Bug Blog

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…

Late Season Bean Leaf Beetle Activity in Soybeans

Tracey Baute September 5, 2019 1133 Comments Off

Baute Bug Blog

Bean 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”…

Been Waiting for These Bean Insects

Tracey Baute August 15, 2019 1407 Comments Off

Baute Bug Blog

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…

Author: Tracey Baute