Effect of leaf chemistry of Vitis vinifera L. on the performance and development of Epiphyas postvittana (Lepidoptera: Tortricidae).

摘要: Background and Aims In the context of life-history performance, better fitness is evident in insect populations when they correlate positively with nutritional quality their host-plants. We determined chemical differences leaves five cultivars Vitis vinifera relation to feeding by Epiphyas postvittana evaluated larval adult reproductive performance on selected cultivars. Methods Results We total nitrogen, carbohydrates, phenolic substances potassium, iron, sodium zinc V. cv. Chardonnay, Sauvignon Blanc, Merlot, Semillon Marsanne. The E. was raising it from eggs cultivars. Nitrogen content Chardonnay significantly greater than that other Different influenced growth parameters such as larval-developmental time female-pupal mass. Reproductive-performance, measured fecundity fertility rates adult-male longevity, varied reared vinifera. Conclusion Leaves have highest nitrogen concentration enhanced postvittana. A fitness-index study shows female-reproductive whereas declined Marsanne. Significance Study Differences among terms leaf chemistry are critical for adult-reproductive potential. poor response Marsanne could be useful integrated pest management via push—pull strategy planting either near or susceptible vinifera.