Commercial Vegetable Production Blogs

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...

Dew remains on plant surfaces well into the morning hours, creating conditions conducive to powdery mildew. Benefitting from the rains are weeds. This is the busy time of harvest and weeds can rapidly grow to a seed producing size if not controlled with mowing, hoeing, cultivation, or post-emergent...

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...

We are testing soil solarization as an effective management strategy for bindweed, a nasty perennial weed, at our Unity site. We know soil solarization can work for control of annual broadleaf and grass weeds, but I have never attempted to control a perennial weed with it. A bindweed-infested bed...

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...

As I write this, scattered showers are moving through much of southern Indiana. It is unclear yet how much moisture these showers will produce for any given area. What is clear is that May and June have been unusually dry for most of Indiana and Illinois. How will this dry spell affect overall...

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...