xuduoguanongmaiwanlexiguahou

，jiubuzaiquguanlinaxieguaman，renqishengchanghuojiaoshuihouzhunbeijieerchagua。qishi
，erchaguajibenshangmaibuleduoshaoqian，zhishicainongjiaodezhemezaoqingyuanmeibiyao，daoqiujicaikaishizhongxiachashucai。可是，很多菜農不知道，正是這不起眼的偷懶

，亂長的西瓜殘蔓給下茬蔬菜瓜果的種植帶來了很大的危害。

wanqingyuanzuidadeweihaijiushiweibingyuanjunfanzhiyuexiachuangzaoletiaojian。wanqingyuan，bingyuanjundengzaipengshineishengcunfanzhideshijiangengchang
，bingyuanjunshulianggengda，duguoyanyanxiarihou
，yejiunengyougengduodebingyuanjunbaochihuoxing。xiguashengchangqixiangduijiaoduan，congdingzhidaotouchaguacaishouzhiyoulianggeduoyue，qiyudeshijian，pengneichuyuxiechaqi，meiyoujizhu，bingyuanjundengziranjiuwufakuaisufanzhi。jingguoyigeyanyanxiari
，changshijiandegaowenjiashangrengonghuaxueyaojichulidengcuoshi
，shamielegengduodebingyuanjun。bingyuanjunshuliangshao，fashengbinghaidekenengyejiujiangdile。

這(zhe)在(zai)根(gen)結(jie)線(xian)蟲(chong)上(shang)表(biao)現(xian)的(de)特(te)別(bie)明(ming)顯(xian)。根(gen)結(jie)線(xian)蟲(chong)是(shi)拱(gong)棚(peng)種(zhong)植(zhi)區(qu)麵(mian)臨(lin)的(de)首(shou)要(yao)病(bing)害(hai)。根(gen)結(jie)線(xian)蟲(chong)繁(fan)殖(zhi)的(de)速(su)度(du)很(hen)快(kuai)，隻(zhi)要(yao)西(xi)瓜(gua)還(hai)未(wei)拉(la)秧(yang)，根(gen)結(jie)線(xian)蟲(chong)就(jiu)會(hui)不(bu)斷(duan)地(di)進(jin)行(xing)繁(fan)殖(zhi)。據(ju)研(yan)究(jiu)，完(wan)全(quan)相(xiang)同(tong)的(de)兩(liang)個(ge)棚(peng)室(shi)，完(wan)全(quan)相(xiang)同(tong)的(de)管(guan)理(li)措(cuo)施(shi)，相(xiang)同(tong)一(yi)個(ge)棚(peng)結(jie)完(wan)頭(tou)茬(cha)瓜(gua)後(hou)立(li)即(ji)拉(la)秧(yang)清(qing)園(yuan)，另(ling)一(yi)個(ge)則(ze)等(deng)到(dao)結(jie)完(wan)二(er)茬(cha)瓜(gua)。兩(liang)年(nian)後(hou)
，僅(jin)結(jie)完(wan)頭(tou)茬(cha)瓜(gua)的(de)棚(peng)內(nei)土(tu)壤(rang)中(zhong)線(xian)蟲(chong)數(shu)量(liang)明(ming)顯(xian)減(jian)少(shao)，而(er)結(jie)完(wan)二(er)茬(cha)瓜(gua)的(de)棚(peng)內(nei)線(xian)蟲(chong)則(ze)更(geng)加(jia)嚴(yan)重(zhong)了(le)。這(zhe)是(shi)因(yin)為(wei)，根(gen)結(jie)線(xian)蟲(chong)的(de)發(fa)生(sheng)

、fanzhixuyaoyidingdeshijianhewendutiaojian。zaochunjijie，pengneidiwenjiaodi，xianchongfanzhixiangduihuanman。wendushenggaohou，xianchongfanzhijiakuai
，danxiguatouchaguacaishoukeyijinkuaiwancheng

，layangqingyuan，xianchongmeiyoulefanzhidetiaojian，shuliangkaishijianshao。erlingwaiyigepengyinweixianchongyoushengcun、繁殖的條件，線蟲數量不斷增多，度過夏季的數量更多，發生可能性也就更大。

盡早清園、施肥、xiaodudeng，keyirangdiligenghaodihuifu，youliyuxiachashucaideshengchang。yinci，zaitouchaxiguacaishoujieshuhou，youqishiyougenjiexianchongfashengdepengnei，yaojinkuaiqinglipengshineidezhizhu，jianshaobingyuanjun
、線蟲等繁殖的機會

，減少棚內的病原物數量，對於減少病害發生有利。