Effect of larval population densities of mulberry silkworm, Bombyx mori on the rate of cocoon production and adult longevity [in Bangladesh]
1990
Talukder, F.A. | Huq, S.B. | Khan, A.B. (Bangladesh Agricultural University, Mymensingh (Bangladesh). Dept. of Entomology)
A laboratory experiment was conducted with three mulberry silkworm races namely, 05 yellow, RB 112 and Nistari 114 to find out the effect of five different larval densities viz. 75, 100, 125, 150 and 175 per 0.09 m(2) on cocoon production rates and adult longevity in controlled conditions (28+1 deg. C temperature and 78+1% relative humidity). It has been observed that with the increase of larval densities cocoon production as well as adult longevity decreased. Population density 100 (P(100)) per 0.09 m(2) may be used for increased cocoon production, longer adult longevity and economic rearing.
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