Oka Yuji, Ben-Daniel Bat-Hen, Cohen Yigal
Nematology Unit, Gilat Research Center, Agricultural Research Organization, M. P. Negev 85280, Israel Agrogene Ltd., Kibbutz Kramim 84963, Israel Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 52900, Israel.
J Nematol. 2006 Mar;38(1):46-51.
Inula viscosa is a perennial plant that is widely distributed in Mediterranean countries. Formulations of I. viscosa extracts were tested for their effectiveness in control of Meloidogyne javanica in laboratory, growth chamber, microplot, and field experiments. Oily pastes were obtained by extraction of dry leaves with a mixture of acetone and n-hexane or n-hexane alone, followed by evaporation of the solvents. Emulsifiable concentrate formulations of the pastes killed M. javanica juveniles in sand at a concentration of 0.01% (paste, w/w) or greater and reduced the galling index of cucumber seedlings as well as the galling index and numbers of nematode eggs on tomato plants in growth chamber experiments. In microplot experiments, the hexane-extract formulation at 26 g paste/m(2) reduced nematode infection on tomato plants in one of two experiments. In a field experiment, a reduction of 40% in root galling index by one of two formulations was observed on lettuce plants. The plant extracts have potential as a natural nematicide, although the formulations need improvement.
黏毛旋覆花是一种多年生植物，广泛分布于地中海国家。在实验室、生长室、微区试验和田间试验中，对黏毛旋覆花提取物制剂控制爪哇根结线虫的效果进行了测试。通过用丙酮和正己烷的混合物或仅用正己烷提取干叶，然后蒸发溶剂，获得油性糊剂。糊剂的乳油制剂在浓度为0.01%（糊剂，w/w）或更高时可杀死沙中的爪哇根结线虫幼虫，并在生长室试验中降低黄瓜幼苗的虫瘿指数以及番茄植株上的虫瘿指数和线虫卵数量。在微区试验中，在两项试验中的一项试验中，26 g糊剂/m²的正己烷提取物制剂减少了番茄植株上的线虫感染。在田间试验中，在生菜植株上观察到两种制剂中的一种使根虫瘿指数降低了40%。尽管这些制剂需要改进，但植物提取物有作为天然杀线虫剂的潜力。
