Oral toxicity of Photorhabdus toxins against thrips species.
The oral toxicity of excretion products of several Photorhabdus and Xenorhabdus strains was tested on two thrips species: Frankliniella occidentalis and Thrips tabaci. Out of 46 Photorhabdus isolates and six Xenorhabdus isolates only six North American P. temperata isolates were toxic to the thrips species. After 7 days of drinking from P. temperata supernatant a mortality of 90% could be reached. Thrips were also killed after sucking from leaves covered with the toxins. Toxins have a negative effect on thrips fecundity. Possibilities of using P. temperata in the control of thrips will be discussed.
Gerritsen
Lonne J M
LJ
Plant Research International, P.O. Box 16, 6700AA Wageningen, The Netherlands. lonne.gerritsen@wur.nl
Georgieva
Jana
J
Wiegers
Gerrie L
GL
D000284:Administration, Oral; D000818:Animals; D001427:Bacterial Toxins / Q000008:administration & dosage / Q000633:toxicity*; D007313:Insecta / Q000187:drug effects* / Q000502:physiology*; D010572:Pest Control, Biological / Q000379:methods*; D020637:Photorhabdus / Q000502:physiology
D001427:Bacterial Toxins