TY - JOUR JF - JSTNAR JO - JWSS VL - 6 IS - 4 PY - 2003 Y1 - 2003/1/01 TI - Biology of Leucopis glyphinivora Tanas. (Dip.: Chamaemyiidae) and its Efficiency in Biological Control of Aphis fabae Scop TT - زیست شناسی مگس شکارگر [Leucopis glyphinivora Tanas. (Dip.: Chamaemyiidae)] و کارایی آن در مبارزه بیولوژیک با شته سیاه باقلا ( Aphis fabae Scop. ) N2 - The biology of predatory fly, Leucopis glyphinivora Tanas. was studied under greenhouse conditions. Adult longevity was 8 days and the average fecundity was 35.7 eggs. Incubation period, the 1st, 2nd, 3rd larval instars and puparium duration averaged 2.7, 2.16, 3.48, 5.7 and 8.45 days, respectively. Each generation lasted about one month. The predator efficiency was studied by applying the egg together with the adults of A. fabae at ratios of 1:1, 1:2, 1:4, 1:8 and 1:16 on broad bean. First larval instar was exclusively feeding on small nymphs (1st and 2nd nymphal instars) of aphid. Predator:prey ratios of 1:4, 1:8 and 1:16 decreased the number of prey to 97.9%, 98.8% and 61%, respectively, but ratios of 1:1 and 1:2 were unsuccessful in decreasing the number of preys due to predatory larvae leaving the host plant for searching small nymphs of aphid. As a result, the predatory larvae were efficient merely in a particular range of aphid density and age structure. SP - 195 EP - 207 AU - S. Ghadiri Rad, AU - B. Hatami, AU - G. Asadi, AD - KW - Predatory fly KW - Leucopis glyphinivora KW - Aphis fabae Scop KW - Biological control UR - http://jstnar.iut.ac.ir/article-1-147-en.html ER -