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Field Release of Trichogrammatoidea bactrae, Hymenoptera: Trichogrammatidae an Effective Biological Agent of Pink Bollworm (Pectinophora gossypiella, Lepidoptera: Gelechiidae) of Cotton (Gossypium hirsutum L.)

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Field Longevity of a Fluorescent Protein Marker in an Engineered Strain of the Pink Bollworm, Pectinophora gossypiella (Saunders)

Comparison of Infestation Ratio of Pink Bollworm (Pectinophora gossypiella Saund.) and Spiny Bollworm (Earias insulana Boisd.) on Blind Bolls in Arid Regions

ENSAIO DE CAMPO VISANDO AO CONTROLE DA LAGARTA ROSADA DO ALGODOEIRO Pectinophora gossypiella (Saund. 1844) CHEMICAL CONTROL OF COTTON PINK BOLLWORM (Pectinophora gossypiella SAUND., 1844) WITH A NEW INSECT GROWTH REGULATOR

Viability of Trichogrammatoidea bactrae Pupae at Different Temperatures

Effect of temperature on the population parameters of Trichogrammatoidea bactrae Nagaraja
温度对卷蛾分索赤眼蜂种群参数的影响

Light and Low Temperature Effects on the Shelf Life of Different Development Stages of Trichogrammatoidea bactrae, Hymenoptera: Trichogrammatidae

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Some Biological Attributes of Trichogrammatoidea bactrae, Hymenoptera: Trichogrammatidae, at High Temperatures in Pink Bollworm (Pectinophora gossypiella, Lepidoptera: Gelechiidae) Eggs

Keywords: T. bactrae , parasitoid , mortality , fecundity , speed of development , net reporductive rate , intrinsic rate of increase , finite rate of increase , balochistan , pakistan

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Abstract:

The peed of development, (Egg to adult emergence) of Trichogrammatoidea bactrae ranged from 7.273 to 6.532 days between temperatures 30 to 40 C. Immature mortality was maximum (71.88%) at 40 C and minimum (39.77 %) at 30 C. More females than males were found at all tested temperatures. Fecundity was 31 per female at 30 C and 19 per female at 40 C. Females lived longer than males at all tested temperatures. The net reproductive rate (Ro), intrinsic rate of increase (rm) and finite rate of increase ( ) (16.98, 0.30 and 1.43 respectively ) were maximum at 30 C. From these results, 30 C is the best temperature for rearing T. bactrae in the laboratory with 45% RH and 14/10 photoperiod. At 30 C parasitoid can produced about 33 generations in a year. Upper threshold temperature for T. bactrae looks around 45 C.

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