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1983～1985年研究表明,在辽宁省为害甜菜的象虫有:甜菜毛足象、蒙古土象、甜菜象、三北甜菜象、二班尖眼象、黑斜纹象、脊翅小粒象、二脊象、中国方喙象及甜菜碗额象等10种,其中甜菜象Bothynoderes Punctiventris Germar)为建平地区优势种,占总发生量75.40～91.16％,蒙古土象Xylinophorus mongolicas Faust为台安、彰武、黑山、昌图等地优势种,占总发生量92.75～99.42％。除蒙古土象外,在辽宁省其余9种象虫均为本次调查新记录的。 1983～1987年对甲基硫环磷闷种防治甜菜象虫进行了开发试验,并在20余万亩甜菜面积上(占全省播种面积94％)进行推广应用。其配方为种子:水:35％甲基硫环磷乳油=100:400:2.0,取得了显著防治效果,其毒苗杀虫率为85％以上,保苗率91.8～98.1％,一般挽回产量13～17％,严重地块可挽回50％以上,增糖0.5度,并能兼治黑绒金龟子等其它苗期害虫。防治效果明显、简便易行,投资比为1:64,经济效益高,每年增收535万元并对地上部分害虫天敌无杀伤作用。
From 1983 to 1985, the research shows that the elephants harming sugar beet in Liaoning Province are as follows: Beet feet, Mongolian earth elephant, Beet, Three North beet, Two sharp eyes, Black twill, Including Beynolds, Punic nictus Gerbera, Beynanchus xylophilus and Beet, etc. The beet species Bothynoderes Punctiventris Germar is the dominant species in Jianping area, accounting for 75.40-91.16% of the total. Xylinophorus mongolicas Faust, Wu, Montenegro, Changtu and other dominant species, accounting for the total occurrence of 92.75 ~ 99.42%. In addition to the Mongolian earth elephants, the remaining nine species of elephants in Liaoning Province are newly recorded in this survey. From 1983 to 1987, we carried out the development and test on the prevention and control of beetle insects such as methylthiophene and phosphorus, and popularized more than 20 million mu of beet (accounting for 94% of the sown area in the province). Its formulation is seed: water: 35% methyl phosphorothiozane EC = 100: 400: 2.0, and has achieved remarkable prevention and cure effects. The insecticidal rate of the poisoning seedling is over 85%, the seedling protection rate is 91.8% to 98.1%, and the yield is generally recovered ~ 17%, a serious block can be restored more than 50%, 0.5 sugar, and can cure other black peach scarab seedlings pests. Control effect is obvious, simple and easy, the investment ratio of 1:64, high economic efficiency, an annual increase of 5.35 million yuan and on the ground part of the natural enemies of pests no killing effect.