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前言玉米螟是一种世界性在害虫,我国北起黑龙江,南至海南岛,西至云贵高原,都有其广泛分佈与严重为害。我省的主要分佈区为新乡、郑州、南阳、开封、许昌、洛阳等玉米杂粮区。记载1954年、55年据我省九个专区89个县的不完全统计,每年平均有500万亩玉米受害。1956年我省普遍大发生。如原商邱专区调查春玉米的有虫株率达84％,夏玉米达98—100％;1957年以来每年都有千万亩玉米受害,新发展的玉米地区,其为害更为严重。1960年全省平均被害率达54.4％,最“.L至誉篓苎_神黪擘犬譬浊?零糍超粤孝斑广鞴南碴j罐交簧釜群,”翱潞菠凳-一“竺与兰霉势拳?j霉餐的车要努每匿为{移,’郏她。霹甄j舞氟-每昏:罐艄j鑫采瓣矗:磊磊!竺等≥?等摇霉萄套个i呕8阶璺的黎垒i赫广每年2;=均有5l。o另告孟=;{每重襄截、妁吾6辱磊省、矍篓岁漱懿摊琢茌榔专逸聱李帮耩的有每橡萃妄;甄蟓,凌玉米棼§p10麟_9曲年段采瓣、糯有千趸睹王米夔印一新发展曲玉_米地奁)娄哮害吏尊严置lo_9赢年盈省平筠教荽萃未颤。、魂j蕞i
Introduction Corn borer is a worldwide insect pests, north of China from Heilongjiang, Hainan Island to the south, west to Yunnan-Guizhou Plateau, has its widespread and serious damage. The province’s main distribution area for Xinxiang, Zhengzhou, Nanyang, Kaifeng, Xuchang, Luoyang and other corn grains area. Recorded in 1954, 55 years According to the incomplete statistics of 89 counties in nine prefectures in our province, an average of 5 million mu of corn are harmed each year. 1956 generally occurred in our province. For example, the original Qiu area investigated that the rate of insect pests in spring maize reached 84% and the summer maize reached 98-100%. Since 1957, 10 million mu of maize have been harmed each year. In the newly developed maize area, the damage is even more serious. In 1960 the province’s average rate of 54.4% victimization, the most. “L to the reputation of good baskets Zhuo _ God 黪 擘 dog Zhuo turbid? Zero 糍 super-Guangdong Xiaoban 鞴 Nanzha j ballast reed kettle group,” Ao LU stool - A "Zhu and blue mold force punch? J mold meal of the car to every hurried {shift, ’郏 her. Pei Zhen j dance fluorine - every night: tank 艄 j Xin petal chu: Lei Lei! Sagittarius set a vomit 8 order 璺 Li Lei i Hegu 2 per annum; = 5l.o also told Bangladesh =; each Xiang Xiang interception, 妁 吾 6 shan Lei Province,茌 专 逸 专 帮 帮 帮 帮 帮 帮 帮 帮 茌 茌 茌 茌 茌 p p p p p p p p p p p § p10 麟 _9 song period of mining lobe, ) Lou astute official dignity lo_9 win the year Ying Ping Ping Yun teach extraction tremor, soul j 蕞 i