Publications by authors named "D G Buntin"
Transgenic corn and cotton that produce Cry and Vip3Aa toxins derived from (Bt) are widely planted in the United States to control lepidopteran pests. The sustainability of these Bt crops is threatened because the corn earworm/bollworm, (Boddie), is evolving a resistance to these toxins. Using Bt sweet corn as a sentinel plant to monitor the evolution of resistance, collaborators established 146 trials in twenty-five states and five Canadian provinces during 2020-2022.
View Article and Find Full Text PDFStudies on the management of the invasive are essential to refining integrated pest management strategies against in forage sorghum in the USA. The objective of this study was to determine the impact of planting date (early planting and late planting) and in-furrow and foliar insecticide application of , on infestation and forage sorghum yield in Tifton, Georgia and Florence, South Carolina, USA, in 2020 and 2021. Early planted sorghum supported slightly higher aphid density and severity of infestation as evident in the greater cumulative insect days values in the early planted sorghum at both Florence and Tifton in 2020 and 2021.
View Article and Find Full Text PDFThe invasive (Theobald; = Zehntner) is a serious pest of sorghum production in the southern USA. Demonstration of technologies that provide effective control is key to management of this pest. Here, we investigated the effect of host plant resistance (resistant cultivar: DKS37-07 and susceptible cultivar: DKS53-53) and a single foliar insecticide (flupyradifurone: Sivanto Prime) application on infestations and the role of natural enemy populations in grain sorghum production across five locations in four states in southeastern USA.
View Article and Find Full Text PDFArticle Synopsis
- The fall armyworm (Spodoptera frugiperda) is a major pest affecting food and fiber crops, with resistance to Bt corn, which produces insecticidal proteins, being observed in both North and South America.
- Resistance to the Bt protein Cry1F is linked to genetic changes in a key protein called SfABCC2, which is crucial for the pest's susceptibility.
- Recent research identified a significant genomic deletion related to resistance in a Florida strain of S. frugiperda, marking the first time such a deletion has been connected to resistance against a Bt insecticidal protein.
Background: A parasitoid wasp, (Wollaston), was recorded parasitizing eggs of the invasive stink bug (Stål) in the United States. This is the first record of this species parasitizing fresh and frozen eggs of in the United States.
New Information: First record of eggs in the United States.