Note: This post was originally published in July of 2010, but once again in 2012 there are reports of Japanese beetles feeding on soybeans. In particular it would be worthwhile to go and click on the article below that shows what the leaf feeding insects look like along with threshold values.
The... Continue reading
It's time to get out and scout for WBC damage in dry beans. Based on trap counts we are now confident that some counties experienced peak flight the last week of July and others the first week of August. Though I will admit that some trap sites are still catching lots of moths, especially the be... Continue reading
Reports are coming in late last week of fields in Eastern Ontario reaching well above threshold levels for soybean aphids. Just a few weeks prior, these fields had only 30 to 40 per plant. I suspect other fields in even Central and Southern Ontario will also experience this kind of rapid increas... Continue reading
Now that some of you have been fortunate enough to get some corn in, I am hearing reports and seeing tweets that soybean planting has also started. If there was a year to protect your soybeans with an insecticide seed treatment it is this year. Bean leaf beetles are going to be awfully hungry ... Continue reading
Gaps in the stand are starting to show this week. Aside from the typical culprits, moist soils can promote the less often accused.
Millipedes are typically a beneficial arthropod that breaks down crop debris and decaying plant material. However, in the last few years, we've been seeing more d... 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
There are a few guys out there thinking that with the cooler nights, SOYBEAN APHIDS will be leaving their fields so they don't need to spray those fields that recently reached threshold. If aphids are staying at threshold levels 3 or 4 days after the initial assessment, you still need to spray. ... Continue reading
Okay..it is a busy week on the insect front. Sorry..two posts in one day but I want to get the message out!
Bean leaf beetle adults are active in emerging soybean fields. We are starting to see feeding damage in several fields in the southwestern counties. These beetles have been waiting a w... Continue reading
Since there is not much crop up yet to spot feeding injury on, there really is not much happening yet on the insect front. However, anyone that did push planting and planted into too wet or cool soils, or deep planted may start seeing some issues when the crops starts to emerge. Millipedes and s... Continue reading
Just in case some of you are keen and plan to be scotuing this long weekend, there are a few critters you should be watching for.
Alfalfa weevil (AW) larvae are starting in some fields. So far just the smaller 1st and 2nd instars but warmer weather will help them grow too. Stay ahead of any inf... Continue reading