Project Number: 3020-43000-033-12-N
Project Type: Non-Funded Cooperative Agreement
Start Date: Dec 1, 2016
End Date: Nov 30, 2019
Historically, insect pest populations in bulk stored grains have often been managed by the fumigant phosphine, while the fumigant methyl bromide was used to control insects in flour and rice mills. However, the development of resistance to phosphine, and the world-wide restrictions on the use of methyl bromide, have increased interest in reduced-risk insecticides such as pyrethroids, insect growth regulators, pyrethrins, and certain natural products that are readily and widely available (example: diatomaceous earth). An overlooked aspect of current research is efficacy of insecticides on those insects that are considered to be emerging or potentially invasive pests of stored products. The objective of this collaboration gather additional data that could be incorporated into control programs.
Insect populations of representative stored product insect pests species collected in the USA and in Greece will be collected and reared under laboratory conditions. Bioassays in the USA will be done by examining insecticidal efficacy of new insecticides against the red flour beetle, Tribolium castaneum, and the confused flour beetle, Tribolium confusum, two common stored product pests, and also on two dermestid species, the warehouse beetle, Trogoderma variabile, and the larger cabinet beetle, Trogoderma inclusum. The latter two species are established in the USA and there are increasing concerns from private industry regarding increased incidents of infestations in milling facilities. Research in Greece will focus more on the larger grain borer, Prostephanus truncatus, and the khapra beetle, Trogoderma granarium. The larger grain borer is considered to be a potential invasive species for the USA, but it is not a quarantine pest, however; the khapra beetle is a quarantine pest. The research with larger grain borer can be expanded and companion tests conducted in the USA. Research in Greece evaluating new reduced-risk insecticides for control of stored product insects will be done at the Agricultural University of Athens under the supervision of Dr. Kavallieratos, who has cultures of the larger grain borer and the khapra beetle in his laboratory.