Adarkwah, Charles:
ISBN 9783862470778

Integrated management of the stored-product pest insects Corcyra cephalonica, Cadra cautella, Sitophilus zeamais and Tribolium castaneum by use of the parasitic wasps Habrobracon hebetor, Venturia canescens, Lariophagus distinguendus and neem seed oil. Berliner ökophysiologische und phytomedizinische Schriften Bd. 15 # Pb., 144 S., 31 Abb., davon 11 in Farbe, 20 Tab.

SCHLAGWORTE:
Wespen, parasitoide
Niemöl
Bekämpfung, Biologische
Vorratsschädliche Insekten
Insekten, vorratsschädliche

Toxicity and protectant potential of a neem seed oil (Calneem® oil from Ghana) towards the flour beetle Tribolium castaneum were evaluated in stored wheat in the laboratory using contact toxicity, grain treatment, persistency, progeny emergence and repellency assays. The store chalcid Lariophagus distinguendus was used for biological control of the maize weevil Sitophilus zeamais in maize while the braconid wasp Habrobracon hebetor was used to control the rice moth Corcyra cephalonica in rice stored in jute bags and bulk in an empty room. The parasitoids significantly reduced the emergence of the host weevils and the moth larvae. The compatibility of Calneem® oil, H. hebetor and V. canescens for the control of C. cephalonica and the almond moth Cadra cautella in stored rice were also evaluated. Habrobracon hebetor and V. canescens significantly reduced the emergence of the two moths in all the treatments compared to the control. The study suggests that Calneem® oil is compatible with parasitoids and may also have good potential for the practical use as grain protectant for stored-product pest control. Biological control of S. zeamais, C. cephalonica and C. cautella using L. distinguendus, H. hebetor and V. canescens in bagged and bulk stored maize and rice are possible.

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