食物对竹裂爪螨生长发育及繁殖的影响  

EFFECT OF FOOD ON DEVELOPMENT AND REPRODUCTION OF THE SPIDER MITE, SCHIZOTETRANCHUS BAMBUSAE RECK (ACARI:TETRANCHIDAE)

作　　者：刘怀[1] 赵志模[1] 王进军[1] 徐学勤[2] 李映平[2] 张辅达[1] 

机构地区：[1]西南农业大学植物保护系,重庆400716 [2]四川省林业厅森防站,四川成都610081

出　　处：《蛛形学报》2001年第1期30-34,共5页Acta Arachnologica Sinica

摘　　要：根据毛竹生长特性,用1年生竹、2年生竹、3年生竹和4年生竹的离体叶片作为食料,研究食物对竹裂爪螨(Schizotetranchus bambusae Reck)生长发育及繁殖的影响。试验结果表明,该螨各螨态的发育历期在4种食料组间存在显著差异或极显著差异,其中幼螨至成螨历期(雌螨)分别为5.00、5.10、6.31和5.03d;取食3年生竹叶片时,幼螨——成螨的存活率、单雌平均产卵量显著小于其余3组,分别为70.81％和14.71粒/雌。试验进一步研究了不同受害程度的毛竹叶片对竹裂爪螨生长发育及繁殖的影响,结果表明该螨各螨态的发育历期、雌成螨的寿命及繁殖力都因叶片的受害程度不同而存在显著差异或极显著差异,这表明了该螨种群在发展过程中,因对叶片的取食危害,通过对自身营养条件的恶化而存在着较强的负反馈作用。Development,survival,and reproduction of the spieder mite Schizotetranychus bambusae Reak.on the detached leaves of the moso bamboo Phylostachys pubescens Mazel from 1 - 4 yr - old bamboo growers, were evaluated in the laboratory. The developmental periods of the immature stages were significantly different among the four diets. The spider mite had the longest immature developmental times (6. 3 d) on the leaves from 3 yr-old growers compared with the others (5. 0 - 5. 1 d). The survival of immature stages varied from 94. 3% on the leaves from 4 yr-old growers to 70. 8% from the 3 yr - old growers. The average eggs laid per female were 41. 4,37. 3,14. 7,and 42. 8 on the leaves from 1-4 yr - old growers,respectively. The effect of the leaves at different injury levels on development and reproduction of this spider mite were also evaluated. The deveolpmental periods from larva to adult were 6. 6, 6. 9, 7. 5,7. 5, and 8. 2d,at the injured levels of 1. 25,2. 50,3. 75,5. 0,and 6. 25 (?) · day/cm2,respectively. The average oviposition per female varied from 11. 4 eggs at 1. 25 (?) ·day/cm2 to 2. 50 eggs at 6. 25 (?) ·day/cm2. It was evident that the negative feedback existed between the rise in the mite population and the food quality decrease.

关 键 词：竹裂爪螨 食物 生长发育 生殖力 

分 类 号：Q965[生物学—昆虫学]