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- Title
Parasitism of Megacopta cribraria (Hemiptera: Plataspidae) by Paratelenomus saccharalis (Hymenoptera: Platygastridae) in Organic Soybean Plots in Georgia, USA.
- Authors
Tillman, Glynn; Gaskin, Julia; Endale, Dinku; Johnson, Carroll; Schomberg, Harry
- Abstract
Megacopta cribraria (F.) (Hemiptera: Plataspidae) is a newly invasive, exotic pest of soybean ( Glycine max [L.] Merr.; Fabales: Fabaceae) in the southeastern United States. In 2013, the exotic egg parasitoid Paratelenomus saccharalis (Dodd) (Hymenoptera: Platygastridae) was discovered parasitizing eggs of this pest in kudzu ( Pueraria montana var. lobata [Willd.] Maesen & S. Almeida; Fabales: Fabaceae) and soybean in 3 states in this region of the United States. We evaluated parasitism of M. cribraria egg masses by P. saccharalis in conventional tillage and no-till organic soybean experimental plots in 2013. Density of M. cribraria egg masses was significantly higher in conventional tillage soybean than in no-till soybean in weeks 2 through 5 for the 7 wk period M. cribraria egg masses were detected on soybean. Percentage of parasitism of M. cribraria egg masses by P. saccharalis was significantly higher in conventional tillage soybean (58.4%) than in no-till soybean (44.9%). In general, parasitism rates of egg masses were higher in conventional tillage soybean, where M. cribraria egg mass density was higher, than in no-till soybean.
- Subjects
MEGACOPTA cribraria; PARASITISM; SOYBEAN diseases &; pests; KUDZU; PLATYGASTRIDAE
- Publication
Florida Entomologist (Florida Entomological Society), 2016, Vol 99, Issue 2, p300
- ISSN
0015-4040
- Publication type
Article
- DOI
10.1653/024.099.0223