《植物病虫害绿色防控技术》课件——六、粘虫绿色防控(双语版).pptx

;（一）发生与危害Occurrenceandhazard

粘虫俗称五彩虫、行军虫等，隶属于鳞翅目夜蛾科，是一种偏爱禾本科植物的多食性害虫，大爆发年份给农业生产带来巨大损失，被列入我国农作物重大害虫。

Armyworms,commonlyknownascolorfulwormsandmarchingworms,belongtotheNoctuidaefamilyofLepidoptera.TheyarepolyphagouspeststhatpreferPoaceaeplants.Intheyearoflargeoccurrence,theywillbringhugelossestoagriculturalproduction.Therefore,theyarelistedasmajorcroppestsinChina.

;（二）形态识别MorphologicalRecognition

1、成虫Imago

黄褐色，雄蛾的体色要比雌蛾要深一些。复眼红褐色，触角丝状，在前翅中央近前缘处有2个近似圆形的淡黄色斑块，外侧圆斑下方有1个小白点。

Yellowishbrown,thebodycolorofmalemothsisdarkerthanthatoffemalemoths.Thecompoundeyesarereddish-brown,andtheantennaearefilamentous.Thereare2nearlyroundpaleyellowspotsneartheanteriormargininthecenteroftheforewings,and1smallwhitedotbelowthelateralroundspots.;2、卵Egg

呈馒头形，稍带光泽，直径约0.5mm，通常单层排列呈条状或块状；初产时白色，渐变为黄色至褐色，孵化时变成黑色。

Theeggsofarmywormsaresteamedbun-shaped,slightlyglossy,about0.5mmindiameter,usuallyarrangedinstripsorblocksinasinglelayer;whentheyarefirstlaid,theyarewhite,graduallyturnyellowtobrown,andturnblackwhentheyarehatched.

;3、幼虫Larva

共6龄，老熟幼虫体长约38mm。体色变化较大，头部黄褐色，沿蜕裂线有棕黑色“八”字纹。

Thereare6instarsintotal,thematurelarvaeareabout38mmlong.Thebodycolorvariesgreatly.Theheadisyellowish-brown,withbrownish-blackreversedeightlinesalongthemetamorphosisline.;3、幼虫Larva

体表上有五条黑白色纵纹，其中背中线较细、白色，两侧有细黑线；对称分布身体两侧的四条纵纹较宽。腹足基部外侧有黑褐色斑。

Therearefiveblackandwhitelongitudinallinesonthebodysurface,ofwhichthemidlineofthebackisthinandwhite,withthinblacklinesonbothsides.Thefourlongitudinallinessymmetricallydistributedonbothsidesofthebodyarewide.Therearedarkbrownspotsontheoutersideofthebaseofgastropods.;4、蛹Pupa

体长20mm，红褐色，有光泽。腹部背面第5～7节近前缘有马蹄形刻纹。尾刺3对，中间的1对大而直，两侧的细小而弯曲。

Thepupais20mmlong