Early Insect and Slug Concerns
For a couple of weeks we have been warning about the possibility of black cutworms based on adult catches reported by surrounding states. We have begun to observe some minor feeding on corn, suggesting that the larvae are there and the worst of the damag ...
Cold Weather and Wheat Injury
Last week, temperatures in northern Ohio dipped below freezing prompting some concerns about possible injury to the wheat crop. The effect of cold weather depends on the wheat growth stage. Maximum resistance to cold weather occurs in December-February. A ...
Late-Season Weed Issues – Are We Having Fun Yet?
According to our weather guru, there is no close precedent for a summer like this in the last 100 years, and I can’t recall a year with this much mid-season rain in my almost 30 years here. This has obviously caused immense problems with post-emergence h ...
Wet Weather and Late-Season Fungicides
Wet weather is continuing to be a problem throughout the state, and many questions are popping up regarding late-season fungicides. With funding from Ohio Soybean Council, we conducted a “high-input” trial in 2013 (9 locations) and 2014 (7 locations) to ...
Fungicide Applications Depend on Soybean Growth Stages and Presence of Disease
We have had lots of inquiries this past week on the benefit or lack-there-of from fungicide applications on soybean in Ohio. There are several factors that I have found in the past that can influence this return on investment: growth stage of the plant ...
Will Persistent Rains Impact Corn Pollination?
According to the National Agricultural Statistics Service (http://www.nass.usda.gov/Statistics_by_State/Ohio/Publications/Crop_Progress_&_Condition/index.asp) for the week ending 7-19-15, 43% of the state’s corn was silking compared to 53% for the 5-y ...
More on Fungicides and Tank-Mixing with Insecticides
Foliar diseases continue to spread up the corn plant in some fields, so, this may be the year to apply a foliar fungicide to minimize losses due to diseases such as Northern Corn Leaf Blight (NCLB) and Gray Leaf Spot (GLS). Both GLS and NCLB may cause yie ...
C.O.R.N. Newsletter 2009-13
http://entomology.osu.edu/ag/images/sgiclb.pdf. And for organic growers, remember that Entrust is a spinosad product that is permissible on ... been done. See http://corn.osu.edu/index.php?setissueID=287,article C for an article that discusses how ...
Foliar Diseases Already Showing up in Corn
Foliar diseases, especially Gray Leaf Spot (GLS) and Northern Corn Leaf Blight (NCLB), are already showing up in some corn fields. Although this a little bit on the early side for Ohio, it is not at all surprising, since we have had several wet, humid day ...
Prospects for “Muddied Corn”
During the past two weeks, flooding and ponding have occurred across Ohio, especially in river bottoms and along streams. In some localized areas, this may have resulted in partial and complete immersion of corn in nearby fields, especially in low spots. ...