Results 141 to 150 of about 4,809 (186)

Baseline Susceptibility and Diagnostic Concentration of AcMNPV in Rachiplusia nu (Lepidoptera: Noctuidae) in Brazil and Cross-resistance to Cry1Ac. [PDF]

Neotrop Entomol
Dallanora A, Godoy DN, Pretto VE, Liberalesso O, Warpechowski LF, Bernardi O.   +5 more
europepmc   +1 more source

Gut Symbiont-Driven Adaptive Evolution of Herbivorous Insect-Plant Interactions and Its Ecological Implications. [PDF]

Plants (Basel)
Li J, Yu Y, Zulu L, Xu N, Pan Y, He W, Liu X, Rao Q.   +7 more
europepmc   +1 more source

Fitness Costs in Diamondback Moth Plutella xylostella (L.) (Lepidoptera: Plutellidae) Resistant to Lufenuron, A Chitin-Synthesis Inhibitor Insecticide. [PDF]

Insects
Bermúdez NC, Pava N, Nascimento DV, Ribeiro LMS, Siqueira HAA, Torres JB.   +5 more
europepmc   +1 more source

Mutation of P‐element somatic inhibitor induces male sterility in the diamondback moth, Plutella xylostella

Pest Management Science, 2021
AbstractBACKGROUNDGenetic manipulation of sex determination pathways in insects provides the basis for a broad range of strategies to benefit agricultural security and human health. The P‐element somatic inhibitor (PSI) protein, an exon splicing silencer that promotes male‐specific splicing of dsx, plays a critical role in male sexual differentiation ...
Yaohui Wang, Xia Xu, Xi'en Chen, Xiaowei Li, Honglun Bi, Jun Xu, Chenxu Zhu, Changying Niu, Yongping Huang   +8 more
openaire   +3 more sources

Cross‐resistance, mode of inheritance, synergism, and fitness effects of cyantraniliprole resistance in Plutella xylostella

Entomologia Experimentalis et Applicata, 2015
AbstractThe diamondback moth, Plutella xylostella (L.) (Lepidoptera: Plutellidae), has evolved resistance to various types of insecticides in the field. In the present study, the resistance of P. xylostella (designated Cya‐SEL) to cyantraniliprole increased to 30.6 and 326‐fold after 26 generations of selection, compared with the field population (TA ...
Xia Liu, Yubo Ning, Hongyan Wang, Kaiyun Wang   +3 more
openaire   +2 more sources

Relationship between predation byPodisus nigrispinusand developmental phase and density of its prey,Plutella xylostella

Entomologia Experimentalis et Applicata, 2012
AbstractThis study evaluated the predation byPodisus nigrispinus(Dallas) (Hemiptera: Pentatomidae) at various densities of larvae and pupae of the pestPlutella xylostella(L.) (Lepidoptera: Plutellidae). We tested predator behavior of femaleP. nigrispinusat six experimental densities (1, 5, 10, 15, 20, or 25 prey items in a 1‐l transparent plastic ...
Vacari, Alessandra M., De Bortoli, Sergio A., Torres, Jorge B.   +2 more
openaire   +3 more sources

Reduced expression of the P‐glycoprotein gene PxABCB1 is linked to resistance to Bacillus thuringiensis Cry1Ac toxin in Plutella xylostella (L.)

Pest Management Science, 2019
AbstractBACKGROUNDRapid evolution of pest resistance has seriously threatened the sustainable use of Bacillus thuringiensis (Bt). The diamondback moth, Plutella xylostella (L.), is the first pest to develop resistance to Bt biopesticides in the open field, which renders it an excellent model to explore the molecular basis of Bt resistance in insects ...
Junlei Zhou, Zhaojiang Guo, Shi Kang, Jianying Qin, Lijun Gong, Dan Sun, Le Guo, Liuhong Zhu, Yang Bai, Zhuzhu Zhang, Xiaomao Zhou, Youjun Zhang   +11 more
openaire   +3 more sources

Insecticidal and antifeedant effects of two alkaloids from Cynanchum komarovii against larvae of Plutella xylostella L

Journal of Applied Entomology, 2013
AbstractA bioassay‐guided fractionation of Cynanchum komarovii crude alkaloid extract led to the isolation of two alkaloids. The isolated alkaloids were identified as 7‐demethoxytylophorine (1) and 6‐hydroxyl‐2,3‐dimethoxy phenanthroindolizidine (2) based on the comparison of their spectroscopic characteristics with the literature data.
H. Guo, M. Yang, Q. Qi
openaire   +2 more sources

Trichome production and variation in young plant resistance to the specialist insect herbivore Plutella xylostella among natural populations of Arabidopsis lyrata

Entomologia Experimentalis et Applicata, 2013
AbstractThe strength of plant‐herbivore interactions varies spatially and through plant ontogeny, which may result in variable selection on plant defense, both among populations and life‐history stages. To test whether populations have diverged in herbivore resistance at an early plant stage, we quantified oviposition preference and larval feeding by ...
Adriana Puentes, Jon Ågren
openaire   +2 more sources