By: Anne Dorrance, OSU Extension
Harvest is well underway and once the soybeans are off the fields this provides some time to sample soil for the SCN populations. The SCN Coalition theme for the next few years is What’s your number? Do you know which fields have SCN and what the current population is sitting at? Continue reading
By: Joe Boggs, OSU Extension
Asian Longhorned Beetle (ALB) (Anoplophora glabripennis) is potentially the most devastating non-native pest to have ever arrived in North America. The beetle kills trees belonging to 12 genera in 9 plant families. This includes Acer (all maple species); Aesculus (horsechestnuts and buckeyes); Ulmus (elms); Salix (willows); Betula (birches); Platanus (Sycamore/Planetrees); Populus (Poplars); Albizia (Mimosa); Cercidiphyllum (Katsura); Fraxinus (ashes); Koelreuteria (goldenraintree); and Sorbus (mountainash). Continue reading
By: Kelley Tilmon, Pierce Paul, Andy Michel, OSU Extension
There have been recent reports of high corn earworm populations in certain grain corn fields. Corn earworm is a pest with many hosts including corn, tomatoes and certain legumes. In Ohio it is typically considered a pest of sweet corn rather than field corn, but this past week substantial populations have been found in certain field corn sites. Corn earworm moths are most attracted to fields in the early green silk stage as a place to lay their eggs. These eggs hatch into the caterpillars that cause ear-feeding damage, open the ear to molds, and attract birds. With a wide range of planting dates this year, different fields may be at greater risk at different times. Continue reading
By: Kelley Tilmon and Andy Michel, Ohio State University Extension
With all the planting difficulties in 2019 there are soybeans in a much greater variety of growth stages than usual this summer. What does this mean for stink bug management? First, it means that different fields will be in the danger zone at different times. Stink bugs feed on developing pods and seeds, with the potential for damage beginning in R3 and R4-R5 being prime damage time, with damage potential still lingering in early R6. Continue reading
Results from week four of The Ohio State University Western bean cutworm (WBC) monitoring network has resulted in an increase of moths captured in the majority of Ohio counties; which means now is the time to get out and scout for egg masses. Last week’s trap count included WBC adults captured from July 15 – July 21. A total of 26 counties monitored 79 traps across Ohio. Overall, trap counts increased, resulting in a total of 2001 WBC adults (287 total last week) and a statewide average of 25.3 moths/trap (up from 3.8 average last week) (Figure 1). A WBC statewide average of 25.3 is similar to what we observed in the WBC peak week in 2018 (25.1) (Figure 2).
Figure 1. Average Western bean cutworm adult per trap followed by total number of traps in the county in parentheses for week ending July 21, 2019 Continue reading
By: Amy Stone, OSU Extension Lucas County
The caterpillar feeding frenzy has ended for the year and adult activity is being observed in NW Ohio. The male moths have taken flight in their zig-zag pattern in hopes of finding a mate. The female moths are white and a bit larger in size, and typically don’t move far distances from the pupal casing that they emerged from. She gives off a pheromone to alert close by males of her location. After a visit from the male moth, she will begin laying eggs. The mass of eggs laid now, will remain in that stage until the following spring, as there is one generation per year. Continue reading
By: Celeste Welty, OSU Extension Specialty Crop Entomologist
Although strawberries are not considered to be a vegetable crop, using VegNet is a good way to get information out to growers who have both vegetables and berry crops.
Strawberry fruit that have been injured by thrips are a dull or bronzed color, and are often small, hard, seedy, and fail to ripen. They can cause uneven maturity of fruit. When severe, their injury can make the strawberry crop completely unmarketable.
Figure 1. Typical appearance of a thrips. Continue reading
By: Amy Stone, OSU Extension
The USDA recently updated and distributed the emerald ash borer (EAB) (Agrilus planipennis). The map is dated February 2019. Continue reading
Well where did October go? As I look at the calendar it feels like things are getting a bit hectic as we plan for Northwest Ohio Crops Day (February 8th), pesticide certification, and all of our other winter programming. Seems like the holidays will be here before we know it.
Significant progress was made in the last two weeks with regards to harvest, but with the recent and forecasted rainfall, it is looking like the remainder of harvest will be delayed for the time being. With a significant rain system heading our way and poor drying conditions it may take a while before fields are firm enough to access. This has raised some concerns over the standing corn stalk quality. Of course late harvest crop standability is largely weather dependent, however one can expect some lodging if a heavy wind come through the region. Continue reading
By: Joe Boggs, OSU Extension Educator
Previously published on OSU Extension’s Buckeye Yard and Garden Line
Our drop in temperatures throughout Ohio will no doubt convince fall home invading insects that it’s time to seek winter quarters. These unwelcomed guests typically include Boxelder Bugs (Boisea trivittatus); Western Conifer Seed Bugs (Leptoglossus occidentalis); Magnolia Seed Bugs (Leptoglossus fulvicornis); Multicolored Asian Lady Beetles (Harmonia axyridis); and the most notorious of all, Brown Marmorated Stink Bugs (Halyomorpha halys).
