As winter is upon us, there are things that growers can do to deal with winter pests. Of course, this is particularly important in winter production and here in Illinois, this is primarily done in high tunnels and greenhouses. In high tunnels, no pest is worse in winter production than aphids (...

In our current research project, “Strategies for Improving Biological Control of Insect Pests for Vegetable Growers Utilizing High Tunnels”, tomato harvest has ramped back up now that the raccoon situation is under control. Overall fruit size is smaller while flavor and white core has...

For some, the emergence of the two periodical cicada broods across Illinois went by without a single sighting or rise in decibels. But for others, it was a mass emergence of movement, scent, and sound like no other.Dr. Kacie Athey’s lab is now requesting fruit growers report any sustained damage to...

It is starting to be potato leafhopper season in Illinois. Potato leafhoppers are pests on a variety of crops (fruit, vegetable, ornamental) and they do not overwinter here, so they migrate in from the south as the weather warms up. Potato leafhoppers feed by inserting their needle-like mouthparts...

As you have probably heard, very soon our state will be host to two broods of periodical cicadas. Here in Illinois, we actually have five broods of periodical cicadas and so every couple of years some part of the state will be host to periodical cicadas. 2024 is special because it is uncommon for...

Plum curculio has been a growing problem in most peach and apple orchards in Illinois. A small weevil, laying eggs inside the fruit, is quite destructive to the peaches and apples. Traditionally, we have diagnosed this problem through the crescent-shaped scar that appears on fruit as a result of...

Illinois will experience the co-emergence of two broods of periodical cicadas in 2024, the 13-year Great Southern Brood (XIX) and the 17-year Northern Illinois Brood (XIII). For the most part, the two brood ranges are not expected to overlap but together much of the state’s inhabitants will be...

We had a break from the summer heat last week, but this week the heat dome has moved back over our region creating very hot, humid conditions. With 95-100° temperatures and heat indexes ranging from 105-120°, much of the field work in our high tunnels is completed before noon with lots of water and...

If you work with specialty crops or have experience with two-spotted spider mites, please complete a survey from Purdue University designed to determine the limit of detection of spider mite damage. All responses...

Pumpkins are doing well. I gave my pumpkins a side dress application of nitrogen the first week of August and they have really taken off we have fruit starting to size nicely. I have not seen any signs of powdery mildew yet but have started spraying preventative fungicides, especially given the...

Phytophthora blight, caused by Phytophthora capsici, is the most important disease of cucurbits and peppers in Illinois. In wet conditions, the disease may cause 100% crop losses. Following the recent heavy rainfalls, the disease developed in our pumpkin plots near South Pekin in Tazewell...

As with other locations across the state, the extremes in weather have been felt in far southern Illinois as well. From dangerously high temperatures and heat indexes and drought conditions of a couple of weeks ago to more tolerable summertime temperatures and significant rainfall events within the...

As we get into the later part of July, now is the time to start scouting more closely for diseases and insects in pumpkins. Powdery mildew is by far the most prevalent and common pumpkin disease, but also bacterial spot. Some years, downy mildew can also blow into the area; however, I have not...

High temperatures and very high humidity are the current conditions in the St Louis Metro East. The entire region has received rain recently, just not all at the same time or the same amount. In general, soil conditions worsen as you move south, but are improved from the last reporting. Harvest in...

July has brought a little relief from the drought conditions, but for some that relief has been short-lived. Locally, most areas have received a cumulative total of an inch or more of rainfall this month. Some areas still have been missed for more soaking rains and the moisture has been a “band-aid...

It is still very dry overall across our area. We have had a few scattered rain chances that have brought most at least some rain; however, we are at such an overall deficit, that it just doesn’t feel that it goes very far. Last weekend was the most “widespread” rainfall we have had, but still, some...