Life table of Delphastus catalinae (Horn) (Coleoptera: Coccinellidae) on cotton whitefly, Bemisla tabaci (Genn.) (Hornoptera: Aleyrodidae) as prey
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Tarih
2007
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Eugen Ulmer Gmbh Co
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Developmental time, longevity and fecundity of Delphastus catalincie (Horn), a predator of Bemisia tabaci (Genn.), were evaluated under laboratory conditions. Developmental time from egg to adult was 22.3, 15.57 and 18.41 days at 25, 30 degrees C and at fluctuating temperatures of 25/35 degrees C (12/12 h), respectively. It was also found that temperatures above 35 degrees C were lethal, since all eggs were killed. The female adult's longevity and reproduction differed with temperatures. Mean adult longevities were 105.25, 40.2 and 42.1 days, and total fecundities were 213.72, 118.94, and 117.93 eggs/female at 25, 30 degrees C and at fluctuating temperatures of 25/35 degrees C, respectively. Additionally, life tables were constructed from data obtained to compare the effects of different temperatures. The highest reproductive rate was 88.93 at 25 degrees C. In contrast, at 30 degrees C the highest intrinsic rate of increase and the shortest generation time were 0.127 and 28.14 days, respectively. The results indicate that the optimum temperature for mass rearing of D. catalinae ranges from 25 degrees C to 30 degrees C.
Açıklama
Anahtar Kelimeler
Delphastus catalinae, developmental time, fecundity, life table, longevity, predator, temperature
Kaynak
Journal of Plant Diseases and Protection
WoS Q Değeri
Q4
Scopus Q Değeri
Q1
Cilt
114
Sayı
1
