This season started out dry and hot. These are the ideal conditions for pests that we often associate with controlled environments: aphids and mites. There are a number of factors that contribute to their success in these conditions, including lack of rain which physically removes the insect from the plant and drought-stressed plants, which are[Read More…]
Last week I encountered my first adult Japanese Beetle of the 2023 season. It was at my home, and I was keeping my fingers crossed that it was just an unlucky stray individual, but hoping I had more time before their devastation would arrive. Well, I was wrong. Over the weekend, I found a few[Read More…]
Are you interested in collaborating with Purdue Entomology on the grant “Improving two-spotted spider mite management in high tunnel cucumber production” funded by North Central SARE, Sustainable Agriculture Research and Education (LNC20-438)? The primary objectives of this research are to increase our understanding of two-spotted spider mite dynamics and management in a high tunnel cucumber[Read More…]
At the Purdue Student Farm, we are in full swing with our Colorado Potato Beetle (CPB; Figure 1) management program. On this small farm, these beetles are a consistent threat to the potato crop. This is in part due to their limited ability to rotate, as the whole farm is smaller than the recommended rotation[Read More…]
Join eOrganic for 4 webinars on the findings of the biocontrol project in April and May 2023! Register at the links below for the May 18 and May 24 webinars! Recordings will be posted here and on the eOrganic YouTube channel! eOrganic Webinars Date Webinar Presenters April 26, 2023 Marketing Value-added Grains for Local and[Read More…]
Each year we get several reports of seedlings being cut at or near the base of the plant/soil surface. The critter who gets the blame most often is cutworms. And that makes sense because the damage is in the name. However, with closer inspection, it seems that the blame can often be misplaced. There are[Read More…]
Background Pillbugs, roly-polys, and potato bugs are the dominant common names for the isopod genus Armadillidium spp. As the scientific name suggests, these little critters resemble mini armadillos but are, in fact, crustaceans that live on land (Figure 1). Therefore, they are more closely related to lobsters, crabs, and shrimp than insects. Pillbugs are important[Read More…]
The warm weather of late did not only pull us out of our winter slumber but definitely awoke some of our overwintering pests as well. Cucumber beetles and seedcorn maggots are likely on the hunt for food, and your early-season crops may be exactly what they are looking for. Striped cucumber beetles (Figure 1) are[Read More…]
In your propagation/seeding house, you are setting the stage for the remainder of your growing season, and there are a few key things I would like to remind you about to minimize pest issues at this crucial stage. Cleanliness is key! Make sure you start with clean trays for any transplants you may be generating.[Read More…]