为筛选高效低毒的农药新品种，进行了20％康福多SL防治梨木虱的试验研究。
Field trials of two years demonstrated that 20% confidor SL was effective to control pear planthoppers.
研究发现，果面黑点的形成有多种原因，最主要的是梨黄粉蚜和梨木虱等害虫入袋为害造成的。
Study showed that insect entered in the bags is the main reason, especially Pear psylla and Pear phylloxera.
结果表明，在2000-2002年和2010年，高温是抑制梨木虱生长发育的最主要气象因子；
The results showed that high temperature was the major meteorological factor that could obstacle the development of Psylla Chinesefrom 2000 to 2002 and in 2010.
结果表明，中国梨木虱第一、第二世代种群的趋势指数分别为4．189和3．974； 世代的存活率分别为5．818％和5．52％。
The trend indices of population of 1st and 2nd generations were 4.189 and 3.974, the survival were 5.818% and 5.52%.
结果表明，中国梨木虱第一、第二世代种群的趋势指数分别为4．189和3．974； 世代的存活率分别为5．818％和5．52％。
The trend indices of population of 1st and 2nd generations were 4.189 and 3.974, the survival were 5.818% and 5.52%.
应用推荐