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|Research center of Embrapa/Collection:||Embrapa Semiárido - Artigo em periódico indexado (ALICE)|
|Type of Material:||Artigo em periódico indexado (ALICE)|
|Authors:||MORAES, G. J. de|
SPIN NETO, R.
PINTO, H. C. S.
|Additional Information:||GILBERTO JOSÉ DE MORAES, CPATSA.|
|Title:||Morphology, biology and pesticide tolerance of Chelotogenes ornatus (Acai: Cheyletidae).|
|Publisher:||Entomophaga, v. 34, n. 4, p. 477-484, 1989.|
|Description:||This paper reports on the morphology, biology and pesticide tolerance of Cheletogenes ornatus, the most common predator of Pinnaspis aspidistrae in the region of Juazeiro- Bahia- Brazil. Some differences between C. ornatus from Brazil and redescriptions in the literature are mentioned in this paper. At 28 +ou- 5oC the duration of the life cycle was 40.6 and 31 days for female gametes and male gametes respectively. Females had 2 nymphal stages while the only male obtained in the laboratory had a single nymphal stage. C. ornatus reproduced by thelytokous parthenogenesis, and male gametes were seldom produced. The peak was ca. 0.8 crawler of P. aspidistrae/gemale gamete/day. The least harmful chemicals to adult females of C. ornatus were methyl parathion, malathion, cyhexatin, zineb and sulfur. Those chemicals caused less than 10% mortality of female gametes at he recommended rates on citrus. COncurrently, the first 2 chemicals caused over 70% mortality of crawlers of P. aspidistrae in the laboratory at the recommended rates.|
|Appears in Collections:||Artigo em periódico indexado (CPATSA)|
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|Entomophagav.34n.4p.4774841984.pdf||3,66 MB||Adobe PDF|