| Title: | "Field efficacy of insect pathogen, botanical, and jasmonic acid for the management of wheat midge Sitodiplosis mosellana and the impact on adult parasitoid Macroglenes penetrans populations in spring wheat" |
| Address: | "Department of Research Centers, Western Triangle Agricultural Research Center, Montana State University, Conrad, Montana, USA" |
| ISSN/ISBN: | 1744-7917 (Electronic) 1672-9609 (Linking) |
| Abstract: | "The wheat midge, Sitodiplosis mosellana, is a serious pest of wheat worldwide. In North America, management of S. mosellana in spring wheat relies on the timely application of pesticides, based on midge adults levels caught in pheromone traps or seen via field scouting during wheat heading. In this context, biopesticides can be an effective alternative to pesticides for controlling S. mosellana within an Integrated Pest Management program. A field study using insect pathogenic fungus Beauveria bassiana GHA, nematode Steinernema feltiae with Barricade polymer gel 1%, pyrethrin, combined formulations of B. bassiana GHA and pyrethrin, Jasmonic acid (JA) and chlorpyrifos (chemical check) was performed to determine to which extent they affect midge larval populations, kernel damage levels, grain yield, and quality, and the impacts on adult parasitoid Macroglenes penetrans populations. The results indicated that biopesticides JA and S. feltiae were the most effective in reducing larval populations and kernel damage levels, and produced a higher spring wheat yield when compared to the water control at both study locations (East Valier and North Valier, Montana, USA). Increased test weight in wheat had been recorded with two previous biopesticides at East Valier but not for North Valier, when compared over water control. These results were comparable in efficacy to the chlorpyrifos. This study also suggested that B. bassiana and pyrethrin may work synergistically, as exemplified by lower total larval populations and kernel damage levels when applied together. This study did not demonstrate the effect of any treatments on M. penetrans populations" |
| Keywords: | "Animals *Beauveria Biomass Cyclopentanes *Diptera Host-Parasite Interactions Insecticides Larva Oxylipins *Pest Control, Biological Pheromones Pyrethrins *Rhabditida Triticum Wasps/*physiology Integrated Pest Management biological control biopesticides en;" |
| Notes: | "MedlineShrestha, Govinda Reddy, Gadi V P eng Montana wheat and barley committee/ accession# 232056/USDA National Institute of Food and Agriculture, Multi-state Project S-1052 and the Working Group on Improving Microbial Control of Arthropod Pests Covering Research in Montana/ Evaluation Study Australia 2017/10/25 Insect Sci. 2019 Jun; 26(3):523-535. doi: 10.1111/1744-7917.12548. Epub 2017 Dec 27" |
