Effects of sublethal dose of Euphorbia helioscopia latex on growth,development and reproduction of Acrythosiphon pisum
Euphorbia helioscopia is a plant of the family Euphorbiaceae and genus Euphorbia,and the whole plant is rich in white latex,which is poisonous.In the context of national high-quality development and the construction of"new agricultural science",it is particularly important to explore the potential of E.helioscopia in the development of insecticidal pesticides.In this study,the effects of sublethal doses(LC35,LC25,LC15)of E.helioscopia latex on the growth,develop-ment and reproduction of Acrythosiphon pisum were investigated by in vitro leaf plant mediated method on the basis of in-door virulence determination.The results showed that different sublethal doses of LC35,LC25 and LC15(1.380 g/L、0.847 g/L and 0.460 g/L)of E.helioscopia had significant effects on the growth,development and reproduction of A.pisum.After treatment with different sublethal doses,the developmental period of A.pisum nymph was significantly shortened,while the adult period and aphid production days were significantly prolonged.The average aphid production and daily aver-age aphid production per female were significantly reduced compared to the control group.Under the LC35 dosage treatment,A.pisum nymph had the shortest developmental duration(5.74 d),and adult aphids had the longest lifespan(20.08 d)and aphid reproduction period(17.06 d),while the average aphid production(86.35)and daily average aphid production per female(5.07 aphids)were the lowest.The results indicate that the sublethal doses of E.helioscopia latex have a promot-ing effect on the growth and development of A.pisum,while significantly inhibiting reproductive ability of its adult aphids.
Euphorbia helioscopia latexAcyrthosiphon pisumsublethal dosegrowth and developmentrepro-duction
万方数据
维普
