Tao Jin

Publications (2)3.26 Total impact

• Article: Age-Stage, Two-Sex Life Table of Brontispa longissima (Gestro) (Coleoptera: Hispidae) Feeding on Four Palm Plant Varieties.

  Tao Jin, Yu-Ying Lin, Qi-An Jin, Hai-Bo Wen, Zheng-Qiang Peng
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  ABSTRACT: The life history of Brontispa longissima (Gestro) (Coleoptera: Hispidae), reared under laboratory conditions on leaves of coconut (Cocos nucifera L.), royal palm [Roystonea regia (Kunth) O.F.Cook], bottle palm [Hyophorbe lagenicaulis (L. Bailey) H.E.Moore], and fishtail palm (Caryota ochlandra Hance) was analyzed using age-stage, two-sex life table. Means and standard errors of population growth parameters were calculated using the jackknife method. Moreover, survival rate and fecundity data were applied to project the population for revealing the different stage structure. The mean intrinsic rates of population growth when reared on each respective leaf type were 0.032, 0.031, 0.019, and 0.044. Individuals reared on C. nucifera achieved the highest net reproduction rate at 114.5 offspring per female. The mean generation times of B. longissima ranged from 93.2 d (reared on C. ochlandrai) to 161.5 d (reared on H. lagenicaulis). Projections from survival rate and fecundity data indicated that B. longissima populations can row considerably faster on C. ochlandra than on the other three host plants. The results validate the two-stage life history approach taken, providing an essential tool for developing and testing future control strategies.
  Environmental Entomology 10/2012; 41(5):1208-14. · 1.56 Impact Factor
• Article: Differential susceptibilities of Brontispa longissima (Coleoptera: Hispidae) to insecticides in Southeast Asia.

  Yu-Ying Lin, Tao Jin, Qi-An Jin, Hai-Bo Wen, Zheng-Qiang Peng
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  ABSTRACT: To present the susceptibility of Brontispa longissima (Gestro) (Coleoptera: Hispidae) to insecticides, 22 populations were collected in Southeast Asia from 2007 to 2010. Moreover, the laboratory susceptible strain was maintained. The results demonstrated that the lethal concentration50 value of the susceptible strain to avermectin, beta-cypermethrin, and acetamiprid was 0.034, 0.024, and 1.843 mg liter(-1), respectively. Compared with the susceptible strain, 10 populations developed a medium level of resistance to avermectin (10.8-fold < resistance ratio [RR] < 34.7-fold) and 11 populations had low or minor resistance (3.6-fold < RR < 9.6-fold), only one population from Qionghai still remained susceptible (RR = 2.04-fold). The Zhangjiang population expressed high resistance (RR = 46.1-fold), five populations expressed medium resistance (10.6-fold < RR < 18.1-fold), and 12 populations had low resistance (5.36-fold < RR < 9.66-fold) for beta-cypermethrin, only four populations maintained low resistance or susceptibility (2.08-fold < RR< 3.49-fold). All populations were susceptible to acetamiprid (1.65-fold < RR < 2.89-fold), except for the Jakarta population that developed minor resistance (4.33-fold). This study shows that the resistance to beta-cypermethrin and avermectin in B. longissima is widespread. However, most populations remain susceptible to acetamiprid. Acetamiprid may be considered an available option for the control of B. longissima and should be considered when designing pest management programs.
  Journal of Economic Entomology 06/2012; 105(3):988-93. · 1.70 Impact Factor