Striped Cucumber Beetles Already Active

Originally posted on the May 16, 2022 OSU VegNet Newsletter – posted By Jim Jasinski

My Extension colleague in Pickaway County sent me a quick note and picture over the weekend that the Striped Cucumber Beetle is actively searching and feeding on transplanted or emerged cucurbit crops. Given how cool the temperatures have been the past few weeks I thought it was a bit early but these past few days of 80+F have certainly activated them out of their overwintering locations and into nearby fields. Like the canary in the coal mine, this pest alert from southern growers should help growers in central and northern Ohio prepare to scout and manage transplants or emerged seedlings of cucumber, squash, zucchini, pumpkin or melon.

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Participate in a Study to Identify Major Barriers to Precision Agriculture Technology Adoption

The Ohio State University Department of Food, Agricultural, and Biological Engineering (FABE) is looking for farmers, consultants, and other individuals who work alongside farmers to participate in a survey aimed at identifying major barriers that row crop farmers, consultants, and other personnel involved in crop production face when adopting precision agriculture technologies. Eligible participants must have row cropping operations in Arkansas, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Michigan, Minnesota, Mississippi, Nebraska, North Dakota, Ohio, South Dakota, and Texas or preform consulting tasks or other tasks for famers who have row crop operations within the states stated above.

Participants who are interested in participating are required to take the survey found with the link here: You will have six weeks from April 25, 2022 to June 15, 2022 to respond to the survey. Completing the survey will constitute your consent to participate in the study.

Inquires with questions about the survey or its use should be directed to John Fulton;


Rainfast Intervals, Spray Additives, and Crop Size for Postemergence Soybean Herbicides

Mother nature is finally cooperating, allowing us to get some corn and beans in the ground.  Later this summer it will be time for postemergence herbicide applications.  The table below from the “2022 Weed Control Guide” lists important information on rainfast intervals, spray additives and crop size  for soybean postemergence applications.Click on the table to print a camera ready copy


Rainfast Intervals, Spray Additives, and Crop Size for Postemergence Corn Herbicides

Mother nature is finally cooperating, allowing us to get some corn and beans in the ground.  Later this summer it will be time for postemergence herbicide applications.  The table below from the “2022 Weed Control Guide” lists important information on rainfast intervals, spray additives and crop size  for corn postemergence applications.



Click on each page to print a camera ready copy


Kill Poison Hemlock Now


– Christine Gelley, Agriculture and Natural Resources Educator, Noble County OSU Extension

Poison hemlock is a concern in public right of ways, on the farm, and in the landscape!

Poison hemlock has already emerged in a vegetative state around Noble County and beyond. Soon it will be bolting and blooming on stalks 6-10 feet tall. All parts of the plant are toxic to all classes of livestock if consumed and is prevalent along roadsides, ditches, and crop field borders. It is a biennial weed that does not flower in the first year of growth but flowers in the second year. The earlier you can address poison hemlock with mowing and/or herbicide application, the better your control methods will be.

Poison hemlock is related to Queen Anne’s lace, but is much larger and taller, emerges earlier, and has purple spots on the stems. Another relative that is poisonous is wild parsnip, which looks similar to poison hemlock, but has yellow flowers. Giant hogweed is another relative of poison hemlock that is also toxic. All of these plants have umbel shaped clusters of flowers.

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Early Season Wheat Diseases and Fungicides

By: Dr. Pierce Paul, OSU Extension

The wheat crop in Ohio is now between early boot (Feekes 10, in the south) and approaching Feekes 8 (flag leaf emergence) in northern counties. Cooler-than-usual conditions over the last few weeks have slowed the crop down considerably, but as temperatures increase, the crop will advance through several growth stages over a relatively short period. Cool conditions have also kept foliar diseases in check, but Septoria, and to a lesser extent, powdery mildew are still showing up in some fields. Septoria tritici leaf spot is favored by cool, wet conditions similar to those experienced over the last several weeks. It usually shows up first on the lower leaves as yellowish flecks that later develop into irregularly-shaped, brownish-gray lesions, with easily-seen dark-brown to black spots (called pycnidia) in the center. Cool temperatures and high relative humidity are also required for the development of powdery mildew. Typical symptoms of powdery mildew are whitish fungal growth (pustules) on the surface of leaves and stems. If the variety is susceptible and conditions continue to be favorable, a fungicide application may be warranted to prevent both diseases from reaching the flag leaf before grain-fill.

Septoria tritici leaf spot on wheat – note the black dots (pycnidia) inside the lesion.

Most of the fungicides commonly used on wheat are rated as very good or excellent against Septoria and good or very good against powdery mildew. See the attached chart for fungicide options and efficacy. Remember,

Powdery mildew on wheat leaf – as the name suggests, note the powdery, white pustules.

always read and follow the labels when making an application. For both diseases, a single application between Feekes 8 and Feekes 10 would be sufficient to protect the flag leaf and minimize yield loss. However, applications made at these early growth stages will not provide adequate control of late-season diseases like head scab and Stagonospora glume blotch. So, you should scout fields before making your fungicide application decisions. If powder mildew and Septoria levels are low as the crop approaches heading (Feekes 10.5), you may be better off waiting to treat fields at anthesis (Feekes), as this will help to suppress head scab, which is still the most damaging and important disease of wheat in Ohio, while at the same time provide very good control of Septoria, powdery mildew, and late-season diseases such as Stagonospora and rust.



The Core Vaccines every Ohio beef cow should be receiving

Many health challenges on the farm can be avoided with a proper herd health management program. During the third session of the 2022 Virtual Beef School held on Monday, March 21st Dr. Justin Kieffer, Clinical Veterinarian for the Department of Animal Sciences at OSU, offered a beef herd health management update.

More specifically, Dr. Kieffer spent a few minutes that evening sharing the core vaccines he believes every Ohio beef cow should receive. Embedded below Dr. Kieffer shares that list of five vaccines.

To view Dr. Kieffer’s herd health presentation from the 21st in its entirety, visit this YouTube link:

Maple Bootcamp: Ohio

Maple Bootcamp: Ohio is for woodland owners looking for an annual income from their woodland or current producers looking to sharpen their skills.  This multi-day workshop will cover everything from tree identification and tree health through tapping and marketing an end product (syrup, candy etc).  There will be tours of a sugarbush that has been in operation for more than 50 years and one that takes advantage of today’s technology.  We will also tour the sugarbush that was installed on the Ohio State University Mansfield campus in 2019 and is a hub for maple research

Registration is $150 and can be accessed here along with the agenda for the 3 days.