Insect Pest - Invasive

Crapemrytle bark scale was first confirmed in Maryland in April 2020 by the Maryland Department of Agriculture. It was later found in Frederick and Carroll Counties. Monitor crape myrtles closely for this pest to limit the spread of the scale insect.

In this issue: With warmer weather comes a reminder to stay vigilant about woodland threats, and a look at the importance of pollen. There's an assessment of ghost forests in the region, plus a roundup of news you might have missed. Read about the pawpaw in our "Native Trees of Maryland" feature and about glossy buckthorn in our "Invasives in Your Woodland" feature. And more!

We have detected spotted wing drosophila adults in our traps at the Western Maryland Research and Education Center; therefore, spotted wing drosophila are likely active around the state.

IpM Scouting Tips posted in the Fruit and Vegetable News.

Agronomy News, November 2024, Volume 15, Issue 8. Inside this issue: Winter Crop Production Meetings, Slug Damage Survey & CDL Grant, Tank Mixes for Postemergence Weed Control in Soybean, Stink Bugs in Cover Crops, Corn and Soybean Variety Trials, UMD TAPS: New Kind of Farmer Research, Growing Giant Miscanthus in Maryland, Evaluation of Early Maturity Soybeans, Using NDVI to Determine Nitrogen Needs, Grid Sampling for Variable Rate Lime, Ag Tech Conference, Pesticide & Nutrient Management Training Dates, Storing Mycotoxin-Affected Grain, New Corporate Transparency Act Reporting, Weather Outlook and, Regional Crop Reports.

Population Dynamics of Stink Bugs Within Cover Crops on the Eastern Shore of Maryland.

Insect Pest Management in Peppers

Insect Pests of Tomato

In order to capture the range of pest pressures and growing conditions in Maryland, we replicated our study across 3 UMD research farms (Keedysville, Beltsville, and Queenstown) and over 3 years (2020-2022). At each location we planted one field of a Bt hybrid and one field of a similarly-yielding non-Bt hybrid as early as possible in the growing season (Table 1). In 2020 our Bt hybrid was LC1196 VT2P (Local Seed, Memphis, TN) which expresses Cry1A.105/Cry2Ab2 proteins. In 2021 and 2022 we planted P1197YHR (Pioneer Hi-bred International. Johnston, IA) which contains Cry1Ab and Cry1F proteins. We planted P1197LR (Pioneer Hi-bred International, Inc. Johnston, IA) for our non-Bt hybrid all three years. All hybrids had excellent yield potential and were grown with standard no-till practices. In each field we established 3 replicates of 3 treatments at planting: 1) an untreated control, with bare seed and no in-furrow product, 2) an in-furrow pyrethroid treatment using Capture LFR® (active ingredient: bifenthrin, rate: 13.6 fl oz/acre), and 3) an NST treatment using Poncho® (active ingredient: clothianidin, rate: 0.25 mg/seed). Each replicate consisted of 24 rows of corn at 30 inch row spacing, and was 200 feet long.

Agronomy News IPM Insect Scouting Tips