机构地区: 华南农业大学
出 处: 《昆虫天敌》 1996年第3期112-115,共4页
摘 要: 本文研究了不同节瓜品种(“七星仔”、“红心”、“黑毛”、“杂优”)及“红茄”对节瓜蓟马繁殖力的影响。结果表明,节瓜蓟马成虫平均产卵量以“七星仔”为最大,其值为54.9粒/雌,显著大于“红心”(35.80)、“黑毛”(34.65)、“杂优”(25.65)及“红茄”(27.05)。而品种“红心”、“黑毛”及“杂优”间及其与“红茄”间的平均产卵量没有显著差异。成虫平均寿命在品种“七星仔”、“红心”及“黑毛”上分别为24.13、19.55及19.95天,它们之间没有显著差异,但均显著长于“杂化”品种(16.65)及“红茄”(15.55),后两者之间差异也不显著。成虫产卵前期与平均日产卵量在各节瓜品种间及其与红布间差异均不显著,在品种“七星仔”、“红心”、“黑毛”和“杂优”上及“红茄”上产卵前期分别是2.25、2.61、2.27、2.20及2.00天,平均日产卵量分别为2.18、1.93、1.85、1.64及1.67粒/雌/天。 At constant temperature, the fecundity of Thrips palmi Karny on different varieties of Benin-casa hispida(Cucumis), Qixingzai, Heimao, Hongxing & Zayou, and Solanum melongena(eggplant) were tested in the laboratory in this paper. The results showed that 1) the number ofeggs laid per female during their life span on Qixingzai is highest and significantly more than on other varieties of cucumis and eggplant tested. There are however, no signifhant difference among Hongxing (35. 80), Heimao (34. 65), Zayou (25. 65) and eggplant (27.05). 2) Thenumber of eggs laid per female per day have no significant difference among host crops tested.3) The averape longevity of females on Zayou and eggplant is 16. 65 and 15. 55 deys respectivi-ty, which is shorter significantly than on other host crops tested. 4) The pre-oviposition of fe-males on different varieties of cucumis and eggplant tested shows no significant difference amongothers.