Blog Archives

Management of Soybean Cyst Nematode Starts with Soil Sampling this Fall or Spring

The soybean cyst nematode (SCN) (Figure 1) causes greater annual yield losses in Kentucky than any other pathogen of soybean.  The last time a formal survey was conducted by the University of Kentucky in 2006 and 2007, approximately 76% of

Posted in Grains

Tachinid Flies Might Have Been Actively Working this Season in Kentucky

This past July I observed tachinid flies around conglomerations of June bugs and Japanese beetles while tallying insects in industrial hemp fields (Figure 1). Yaziri Gonzalez (graduate student in Entomology) collected stink bugs in soybean fields in central and western

Posted in Grains, Hemp

Soybean Gall Midge: an Emergent Pest in the Midwest

Problem In Novemnber 2018, a new pest of soybeans was identified as Resseliella maxima (Diptera: Cecidomyiidae) by Raymond Gagné and Junichi Yukawa, two leading taxonomists on midges from the USA and Japan, respectively. This is a new species that farmers

Posted in Grains

Foliar Fungicide Considerations for Soybean

Many soybean fields in Kentucky are approaching the R3 (beginning pod) developmental stage, which generally is a time to consider an application of a foliar fungicide to protect against foliar diseases.  In areas of the state that have received frequent

Posted in Grains

Sugarcane Aphid in Kentucky Sorghum

The sugarcane aphid (SCA) was spotted in Kentucky last week in Fayette and Monroe Counties on sweet sorghum. This invasive pest can cause up to 100% crop loss if left untreated on grain, forage, and sweet sorghum. SCA cannot survive

Posted in Grains

Corn Disease Update

Time for foliar fungicide application decisions in corn Corn is moving through growth stages quickly, and the warm, humid weather in many parts of Kentucky has been conducive for foliar disease development. Fungicides are commonly promoted to reduce the impact

Posted in Grains

Spotting the Right Spot:  Frogeye Leaf Spot vs. Phyllosticta Leaf Spot of Soybean

Phyllosticta leaf spot of soybean has been observed in a few fields in western Kentucky recently.  Although the economic risk of this disease is very low, its symptoms resemble those caused by frogeye leaf spot.  On susceptible soybean varieties, frogeye

Posted in Grains