昆虫学报2018，Vol.61Issue(7)：871-876,6.DOI:10.16380/j.kcxb.2018.07.014
石蒜绵粉蚧生物学特性
Biological characteristics of the solanum mealybug, Phenacoccus solani (Hemiptera: Pseudococcidae)
摘要
Abstract
[Aim]The solanum mealybug, Phenacoccus solani (Hemiptera: Pseudococcidae), is a new record species in China, and supposed to be a great potential threat to agricultural production and ecological environment. This study aims to reveal the biological characteristics of P. solani. [Methods]The reproductive mode, developmental duration, fecundity and morphological characteristics of various developmental stages of P. solani on the host Solanum tuberosum were investigated under laboratory conditions (27 ± 1℃, RH 70％ ± 5％ and a photoperiod of 12 L ∶ 12 D). [Results] P. solani is a parthenogenetic, thelyotokous species, and no male individual could be found in the population. There are five stages (egg, 1 st-3 rd instar nymphs and adult female) in the life cycle. Eggs are laid in a scattering mode, and hatched within ca. 24 min. Female adults also produce some eggs that are unhatchable. The nymphal stage lasts 14-22 d and the total life span is 33-64 d. Adult female has strong fecundity, with the number of eggs laid per female ranging from 135 to 337 (244 on average). Themain morphological characteristics of each developmental stage: egg, oblong, yellow and transparent in appearance, with one pair of reddish brown compound eyes; the 1 st instar nymph, also yellow in color, and moves fast; the 2 nd instar nymph, protuberances appear on the marginal surface of body; the 3 rd instar nymph, dark yellow in color, its protuberances become visible, and caudal valve protrudent; adult female, covered with a thick layer of white waxy powder, protuberances become more visible, body color becomes darker, and legs dark red in color. [Conclusion]The main biological characteristics of P.solani were clarified from the aspects of reproductive mode, developmental duration, and fecundity. The results imply that P. solani is an important and potential dangerous insect pest.关键词
石蒜绵粉蚧/生活史/发育历期/繁殖能力/形态特征Key words
Phenacoccus solani/life cycle/developmental duration/fecundity/morphology分类
生物科学引用本文复制引用
智伏英,黄芳,黄俊,郦卫弟,吕要斌..石蒜绵粉蚧生物学特性[J].昆虫学报,2018,61(7):871-876,6.基金项目
国家自然科学基金项目(31772234) （31772234）
