PREDACIOUS EFFICIENCY OF ADULTS OF THREE PREDATORS ON Coccus hesper/dum LUNDER LABORATORY AND FIELD CONDITIONS. | ||||
| Journal of Plant Protection and Pathology | ||||
| Article 1, Volume 28, Issue 5, May 2003, Page 4013-4019 PDF (421.24 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jppp.2003.243517 | ||||
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| Author | ||||
| Laila A. EI-Batran, | ||||
| Economic Entomol. Dept. ,Faculty of Agriculture, Mansoura University | ||||
| Abstract | ||||
| The feeding capacity of the three adult • predators. Chrysopa septempunctala Wesm., Coccinella septempunclsls L., and Coccinella undecimpuflctsts L. on soli scale insect, Coccus hesperidum L. was evaluated under laboratory and field cosnditions, where different densities from eve~ predator indj'~idual, ;lamely 1,4, 6, 8 and 10 were int~odLJced for eighty indivicuals of they prey. C. undecimpunctsts showed the highest feeding capacity in both laboratory and (ield conditions, and that was for almost all population densities of the predat9r. On the other hand the feeding capacity in the field was higher than that in the labdratory for the three experimental predators. Also, in csse of single predator (density: 1), Ihe. feeding capacity was higher than all other densities (4, 6,8 and 10). This was common lor the three experimental predators under both field and laboratory conditions. | ||||
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