Abstract Background Aphidophagous syrphid, Ischiodon scutellaris (Fabricius) (Diptera: Syrphidae) is an effective predator of aphids that infest many agricultural and horticultural crops. Cowpea aphid, Aphis craccivora Koch (Hemiptera: Aphididae), the natural host for culturing syrphid predator, I. . The present study was conducted to evaluate feeding development on seven species aphid hosts vi...

There are several typographical errors in this article. In the legends of Figures 3 and 4, ‘‘(6 . 1 SE)’’ should read ‘‘(1 SE)’’. In the Methods, Plants and Pets subsection, ‘‘(of C. sinensis . Camellia sinensis)’’ should read ‘‘(of Camellia sinensis)’’; ‘‘(Aphis gossypii.A. gossypii)’’ should read ‘‘(A. gossypii)’’; ‘‘(15. 22uC, 606 10%RH, 13. 16-h photoperiod)’’ should read ‘‘(22uC, 60 6 10% ...

In this study, we investigated the antifungal properties of an acetone extract derived from leaves Swietenia mahagoni (SMAL) against two isolated fungi, Fusarium equiseti (OQ820153) and Rhizoctonia solani (OQ820152), rice sheath. The was effective in inhibiting growth both fungi at highest concentration tested, 3000 μg·mL−1. Laboratory tests on LC20 SMAL (49.86 mg·L−1) versus pyriproxyfen 10% E...

BACKGROUND The species-rich genus Aphis consists of more than 500 species, many of them host-specific on a wide range of plants, yet very similar in general appearance due to convergence toward particular morphological types. Most species have been historically clustered into four main phenotypic groups (gossypii, craccivora, fabae, and spiraecola groups). To confirm the morphological hypothese...

bionomics of aphis gossypii glover and its predators coccinella septempunctata l. and hippodamia variegata goeze were studied in varamin (tehran province) during 11th may to 5th october 2006 on eggplant crop, with the interaction (density dependence) between the aphid and either of the predators determined. the reliable sample size (number of leaves) with a maximum variation of 6.73% was about ...