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Saadoon,, S., Zedan, L. (2007). EFFICACY OF SOME MINERAL OIL AND BIO-ACARICIDE AGAINST TO THE SPOTTED SPIDER MITE, Tetranychus cucurbitacearum (Sayed). Journal of Plant Production, 32(12), 9889-9896. doi: 10.21608/jpp.2007.221243
Sohair E. Saadoon,; Lobina- T.M. Zedan. "EFFICACY OF SOME MINERAL OIL AND BIO-ACARICIDE AGAINST TO THE SPOTTED SPIDER MITE, Tetranychus cucurbitacearum (Sayed)". Journal of Plant Production, 32, 12, 2007, 9889-9896. doi: 10.21608/jpp.2007.221243
Saadoon,, S., Zedan, L. (2007). 'EFFICACY OF SOME MINERAL OIL AND BIO-ACARICIDE AGAINST TO THE SPOTTED SPIDER MITE, Tetranychus cucurbitacearum (Sayed)', Journal of Plant Production, 32(12), pp. 9889-9896. doi: 10.21608/jpp.2007.221243
Saadoon,, S., Zedan, L. EFFICACY OF SOME MINERAL OIL AND BIO-ACARICIDE AGAINST TO THE SPOTTED SPIDER MITE, Tetranychus cucurbitacearum (Sayed). Journal of Plant Production, 2007; 32(12): 9889-9896. doi: 10.21608/jpp.2007.221243

EFFICACY OF SOME MINERAL OIL AND BIO-ACARICIDE AGAINST TO THE SPOTTED SPIDER MITE, Tetranychus cucurbitacearum (Sayed)

Article 4, Volume 32, Issue 12, December 2007, Page 9889-9896  XML PDF (335.46 K)
Document Type: Original Article
DOI: 10.21608/jpp.2007.221243
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Authors
Sohair E. Saadoon,1; Lobina- T.M. Zedan2
1Sakha Agricultural Research Station, Arc, Kafr El-Sheikh, Egypt.
2Cent. Agric. Pest. Lab. Dokky.
Abstract
Experiment were carried out at Sakha Agric. Res. Station, Kafr El-Sheikh, Egypt in 2007 season to evaluate the toxic effect of mineral oil; Capl-2 (96.62% EC) and bio-acaricide; Challenger (36% SC) on the spotted spider mite Tetranychus cucurbitacearum (Sayed).
                Laboratory tests indicated that LC50 values of Capl-2 (96.62% EC) were 3000 ppm and 2500 ppm against adult females and eggs, respectively, while hatchability of mites eggs treated with LC50 increased as the eggs got older, being 36.56, 61.60 and 72.53 for one, two and three-day old eggs, respectively. On the other hand duration of immature stages and total life cycle of this mite, were more prolonged when one, two and three days old eggs were treated with LC50 of Capl-2 oil compared with the untreated ones. Total mortalities of mite immatures were 46.89%, 53.33% and 57.03% when they developed from one, two and three days old eggs treated with LC50 of Capl-2 oil, respectively.
                Under field conditions Challenger (36% SC) with concentration 45 cc/100 L. of water was satisfactory in controlling the mite T. cucurbitacearum on soybean plants (Glycin max Merr.) variety Crowford, since it gave 91.95% reduction in population density. On the other hand, Capl-2 (96.62% EC) at the rate of 1.5 liter/100 L. water gave 73.27% reduction in mite population.
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