苜蓿叶象虫(Phytonomus variabilis)是苜蓿的主要害虫之一。其幼虫集中在植株的上部,主要是损害叶子、生长芽、芽花、花蕾,使苜蓿生长减慢,从而导致青饲饲料产量、质量,特别是种子质量大为降低。例如在契尔诺夫茨省,苜蓿花的损害率达10—18％。防止害虫损害的途径之一,就是培育和利用抗性品种。因此,抗苜蓿叶象虫苜蓿的研究具有非常重要的意义。目前,文献中关于这个问题的报导甚少。曾指出,不同品种苜蓿遭受害虫损害的成度是不同的。长期研究表明,苜蓿叶象虫产卵和摄食偏重于某些品种,对植株的损害成度则决定于植物的化学成份。我们从1972年开始,在契尔诺夫茨省对 Phytonomus variabilis is one of the major pests of alfalfa. The larvae are concentrated in the upper part of the plant, mainly damage the leaves, growth buds, buds, buds, alfalfa growth slowed down, resulting in green feed production, quality, especially the quality of the seeds is greatly reduced. In Chernivtsi, for example, alfalfa flowers have a 10-18% damage rate. One of the ways to prevent pest damage is to breed and utilize resistant varieties. Therefore, the study of alfalfa anti-alfalfa leaf has the very important significance. At present, there are few reports in the literature on this issue. Has pointed out that different varieties of alfalfa pests damage the degree of success is different. Long-term studies have shown that Alfalfa leafworm eggs and feeding emphasis on certain species, the degree of damage to the plant depends on the chemical composition of plants. We started in 1972 in Chernivtsi province