二、防治方法:
1、重視消毒防病。在養蠶1zhouqian,xianjiangcanshijiqizhouweihuanjingdasaoganjing,lajijizhongshaohui。canjuzebixuzaiqingjieliushuizhongxishuaganjinghouzhiyuyangguangxiapushai,ranhoufangrucanshi。suihouduicanshijiyangcanhuanjingjinxing2次化學消毒。第1次用消特靈或含有效氯1%的漂白粉液等廣譜型蠶藥進行消毒。消毒時不留死角,麵麵俱到,並保持半小時濕潤狀態。第2次(ci)用(yong)毒(du)消(xiao)散(san)等(deng)煙(yan)霧(wu)劑(ji)熏(xun)蒸(zheng),做(zuo)到(dao)氣(qi)體(ti)與(yu)液(ye)體(ti)消(xiao)毒(du)相(xiang)結(jie)合(he),消(xiao)毒(du)效(xiao)果(guo)顯(xian)著(zhu)。養(yang)蠶(can)期(qi)間(jian),要(yao)在(zai)收(shou)蟻(yi)前(qian)和(he)各(ge)齡(ling)起(qi)蠶(can)用(yong)防(fang)病(bing)一(yi)號(hao)進(jin)行(xing)蠶(can)體(ti)消(xiao)毒(du)後(hou)再(zai)喂(wei)葉(ye)。在(zai)發(fa)生(sheng)僵(jiang)病(bing)後(hou),每(mei)天(tian)早(zao)晚(wan)都(dou)要(yao)用(yong)新(xin)鮮(xian)石(shi)灰(hui)配(pei)漂(piao)白(bai)粉(fen)(小蠶漂白粉石灰粉比例1:12,大蠶1:8)進行蠶體蠶坐消毒(用紗布均勻噴撒),連續使用七天以上。養蠶結束後,蠶具、簇具、蠶(can)室(shi)及(ji)其(qi)周(zhou)圍(wei)環(huan)境(jing)都(dou)要(yao)先(xian)消(xiao)毒(du)後(hou)清(qing)洗(xi)。若(ruo)使(shi)用(yong)的(de)簇(cu)具(ju)為(wei)草(cao)籠(long)則(ze)應(ying)燒(shao)毀(hui),不(bu)得(de)留(liu)用(yong)。蠶(can)沙(sha)要(yao)集(ji)中(zhong)堆(dui)放(fang)腐(fu)熟(shu),不(bu)能(neng)隨(sui)便(bian)亂(luan)放(fang)或(huo)撒(sa)放(fang)到(dao)桑(sang)園(yuan)裏(li)。
2、注重飼養管理。蠶室要注意通風排濕,降低蠶室、蠶can座zuo濕shi度du。遇yu到dao連lian陰yin雨yu天tian氣qi,還hai應ying多duo撒sa施shi新xin鮮xian石shi灰hui粉fen等deng幹gan燥zao材cai料liao。若ruo蠶can兒er在zai低di溫wen下xia飼si養yang,則ze其qi齡ling期qi經jing過guo會hui延yan長chang,發fa育yu不bu齊qi和he抗kang病bing力li下xia降jiang,極ji易yi導dao致zhi蠶can病bing發fa生sheng。因yin此ci,要yao注zhu意yi加jia溫wen,做zuo到dao適shi溫wen飼si養yang。加jia強qiang提ti青qing,淘tao汰tai病bing小xiao蠶can、遲眠蠶,發現病蠶應及時撿出深埋或燒毀,並適當增加除沙次數。每次除沙後,地麵要用含有效氯0.3%漂白粉液消毒。
3、加jia強qiang桑sang園yuan害hai蟲chong防fang治zhi。夏xia秋qiu季ji節jie,桑sang園yuan害hai蟲chong較jiao多duo,是shi家jia蠶can發fa生sheng僵jiang病bing的de重zhong要yao傳chuan染ran源yuan,要yao及ji時shi進jin行xing桑sang園yuan治zhi蟲chong,防fang止zhi害hai蟲chong感gan染ran僵jiang病bing後hou,汙wu染ran桑sang葉ye及ji周zhou圍wei環huan境jing。
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