2025年黑龍江省農(nóng)作物主要病蟲(chóng)草鼠害長(zhǎng)期發(fā)生趨勢(shì)預(yù)報(bào)

2025-02-17 10:01:00 來(lái)源:黑龍江省植檢植保站 閱讀量:17978 評(píng)論

  【農(nóng)機(jī)網(wǎng) 熱點(diǎn)關(guān)注】 據(jù)省植檢植保站聯(lián)合省植物保護(hù)學(xué)會(huì)組織科研、教學(xué)及植保系統(tǒng)相關(guān)專(zhuān)家會(huì)商分析,預(yù)計(jì)2025年我省農(nóng)作物主要病蟲(chóng)草鼠害總體為中等發(fā)生,發(fā)生程度重于上年,輕于常年。
 
  一、重大遷飛性、雜食性害蟲(chóng)
 
  (一)發(fā)生趨勢(shì)
 
  總體輕至偏輕發(fā)生。
 
  1.草地螟輕發(fā)生,不排除蒙古國(guó)東部和俄羅斯遠(yuǎn)東等境外蟲(chóng)源大量遷入我省中西部地區(qū),造成局部為害的可能。
 
  2.粘蟲(chóng)偏輕發(fā)生,其中,二代粘蟲(chóng)發(fā)生范圍廣,局部地塊偏輕發(fā)生;三代粘蟲(chóng)在中南部和東部地區(qū)部分縣份個(gè)別草荒較重玉米地塊及谷糜和水稻地塊偏重發(fā)生。
 
  3.土蝗偏輕發(fā)生,重點(diǎn)發(fā)生區(qū)域?yàn)橹形鞑哭r(nóng)牧交錯(cuò)區(qū)。
 
  4.亞洲飛蝗在我省發(fā)生為害的可能性極低。
 
  (二)預(yù)測(cè)依據(jù)
 
  1.草地螟越冬蟲(chóng)量少。2024年一代幼蟲(chóng)僅在內(nèi)蒙古、河北、新疆地區(qū)發(fā)生,累計(jì)發(fā)生面積為33.0萬(wàn)畝,較近5年均值減少23.7%,其中內(nèi)蒙古發(fā)生面積占比達(dá)94.7%,河北、新疆合計(jì)占比5.3%,為近年發(fā)生較輕年份。據(jù)全國(guó)監(jiān)測(cè)網(wǎng)越冬基數(shù)調(diào)查,總體越冬蟲(chóng)量低于去年,為近年蟲(chóng)量較低年份。
 
  2.粘蟲(chóng)蟲(chóng)源基數(shù)偏低。據(jù)全國(guó)病蟲(chóng)監(jiān)測(cè)網(wǎng)監(jiān)測(cè),2024年北方大部三代粘蟲(chóng)總體偏輕至輕發(fā)生,全國(guó)發(fā)生面積916萬(wàn)畝,是2023年的2.6倍,但比常年均值減少約8成;回遷蟲(chóng)量高于2023年,但低于常年。
 
  3.土蝗基數(shù)低。2024年我省秋季越冬基數(shù)調(diào)查,土蝗越冬卵量全省平均0.09塊/平方米,卵粒數(shù)3.18粒/平方米,較上年分別減少0.32塊和6.97粒,為近10年最低年份;見(jiàn)卵地塊占總調(diào)查地塊比率為0.65%,分別低于上年、前年2.46和0.88個(gè)百分點(diǎn)。發(fā)生種類(lèi)主要為亞洲小車(chē)蝗、大墊尖翅蝗、毛足棒角蝗、中華稻蝗、寬翅曲背蝗等。近年我省亞洲飛蝗未發(fā)生,秋季適生區(qū)也未查到越冬卵。
 
  二、水稻病蟲(chóng)害
 
  (一)發(fā)生趨勢(shì)
 
  總體為中等發(fā)生。
 
  1.稻瘟病總體偏輕發(fā)生,地域間和品種間發(fā)生差異大,以后期穗頸瘟為主,存在區(qū)域偏重流行風(fēng)險(xiǎn)。
 
  2.水稻二化螟偏輕發(fā)生,局部地塊中等發(fā)生,發(fā)生范圍將進(jìn)一步向東部和北部擴(kuò)大。水稻潛葉蠅、水稻負(fù)泥蟲(chóng)中等發(fā)生,局部地塊偏重發(fā)生。
 
  3.水稻立枯病、水稻綿腐病等苗床病害中等發(fā)生。水稻惡苗病偏輕發(fā)生,局部地塊偏重發(fā)生。
 
  4.水稻紋枯病中等發(fā)生,中南部老稻區(qū)及東部稻區(qū)局部偏重發(fā)生。水稻細(xì)菌性褐斑病、水稻葉鞘腐敗病、水稻穗腐病等水稻生長(zhǎng)中后期病害將重于常年。
 
  5.水稻稻曲病總體偏輕發(fā)生,局部地塊偏重發(fā)生,呈發(fā)生范圍擴(kuò)大、發(fā)生程度加重趨勢(shì)。稻螟蛉、稻蝗偏輕發(fā)生。稻飛虱輕發(fā)生,在東部稻區(qū)局部地塊蟲(chóng)口密度超過(guò)防治指標(biāo)。水稻干尖線蟲(chóng)和稻搖蚊在個(gè)別縣份局部地塊會(huì)造成一定為害。
 
  (二)預(yù)測(cè)依據(jù)
 
  1.主要病害菌源豐富。水稻稻瘟病、水稻紋枯病、水稻葉鞘腐敗病、水稻穗腐病、水稻細(xì)菌性褐斑病等是我省水稻生產(chǎn)中的主要病害,水稻主產(chǎn)縣田間均有發(fā)生較重地塊;水稻稻曲病發(fā)生范圍不斷擴(kuò)大,個(gè)別地塊發(fā)生較重,田間菌源充足,利于病害發(fā)生。
 
  2.全省主栽水稻品種對(duì)稻瘟病整體抗性水平提升。近年我省持續(xù)在40個(gè)水稻主產(chǎn)縣份設(shè)立稻瘟病田間抗性監(jiān)測(cè)圃,通過(guò)田間發(fā)病監(jiān)測(cè)和實(shí)驗(yàn)室對(duì)稻瘟病菌進(jìn)行單孢分離,并分別接種測(cè)定398個(gè)品種的抗病性水平。結(jié)果表明,田間發(fā)病品種占比由2020年67.0%下降到14.3%;室內(nèi)接種測(cè)定發(fā)病風(fēng)險(xiǎn)等級(jí)較高水平的品種占比由84.1%下降到57.4%,但部分縣份發(fā)病風(fēng)險(xiǎn)等級(jí)較高品種仍有較大的種植面積。
 
  3.二化螟、水稻潛葉蠅越冬基數(shù)較低。2024年秋季調(diào)查,水稻二化螟全省平均百稈活蟲(chóng)0.96頭,比上年低0.5頭;水稻潛葉蠅平均1.2頭/平方米,比上年低1.08頭,均為近10年最低年份。
 
  4.氣象條件總體利于病蟲(chóng)害發(fā)生。氣象預(yù)報(bào),2025年我省春季降水略多,5、6月份有階段性低溫,對(duì)水稻苗床病害、水稻潛葉蠅、負(fù)泥蟲(chóng)等病蟲(chóng)害發(fā)生有利;夏季氣溫正常略高,降水正常,時(shí)空分布不均,局部地區(qū)對(duì)病蟲(chóng)害發(fā)生有利。
 
  三、玉米病蟲(chóng)害
 
  (一)發(fā)生趨勢(shì)
 
  總體為中等發(fā)生。
 
  1.玉米螟總體偏輕發(fā)生,個(gè)別越冬基數(shù)較高的縣份中等發(fā)生,地域間和品種間發(fā)生程度差異大,西南部二代發(fā)生區(qū)個(gè)別地塊偏重發(fā)生。
 
  2.玉米大斑病中等發(fā)生,東南部部分縣份偏重發(fā)生。
 
  3.玉米灰斑病總體偏輕發(fā)生,中南部部分縣份中等發(fā)生;玉米絲黑穗病、玉米瘤黑粉病偏輕發(fā)生;玉米北方炭疽病、玉米鞘腐病、玉米小斑病、玉米褐斑病、玉米紋枯病、玉米莖基腐病、玉米穗腐病、玉米白斑病等病害發(fā)生呈上升趨勢(shì)。
 
  4.金針蟲(chóng)、地老虎、蠐螬等地下害蟲(chóng)偏輕發(fā)生,局部地塊偏重發(fā)生;蒙古灰象甲、斑須蝽等苗期害蟲(chóng)輕發(fā)生。玉米蚜蟲(chóng)、玉米紅蜘蛛、雙斑螢葉甲偏輕發(fā)生,局部地塊偏重發(fā)生。玉米蛀莖夜蛾、柳蝙蛾、棉鈴蟲(chóng)等潛在風(fēng)險(xiǎn)病蟲(chóng)害在部分地區(qū)發(fā)生有上升趨勢(shì)。
 
  (二)預(yù)測(cè)依據(jù)
 
  1.主要害蟲(chóng)越冬基數(shù)進(jìn)一步下降。2024年秋季玉米螟扒稈調(diào)查,各地百稈活蟲(chóng)加權(quán)平均為10.56頭,較上年下降4.48頭,為歷史最低年份;存活率平均為79.51%,較常年和上年分別下降8.94和1.76個(gè)百分點(diǎn),且越冬蟲(chóng)源發(fā)育質(zhì)量較上年略差。金針蟲(chóng)、蠐螬、地老虎、螻蛄越冬基數(shù)為0.13頭~0.17頭/平方米,較上年低0.08頭~0.14頭,比近10年均值低0.1頭~0.17頭。
 
  2.耕作栽培方式對(duì)病蟲(chóng)害發(fā)生總體有利。近年推行的秸稈還田、免耕種植等耕作方式及長(zhǎng)期大面積連作,利于田間病蟲(chóng)源積累,為部分病蟲(chóng)害發(fā)生創(chuàng)造了有利條件。雖然玉米田機(jī)械收獲及旋耕等農(nóng)事操作,破壞了秸稈、根茬等玉米螟主要越冬場(chǎng)所,但其野生寄主較普遍,仍可保持一定的玉米螟蟲(chóng)源基數(shù)。近年來(lái)玉米種植密度加大,利于病蟲(chóng)害發(fā)生。
 
  3.氣象條件對(duì)病蟲(chóng)害發(fā)生有利。氣象預(yù)報(bào),后春旱澇分布不均,西南部存在春旱,對(duì)局部地區(qū)地下害蟲(chóng)及苗期害蟲(chóng)發(fā)生為害有利;夏季降水正常,時(shí)空分布不均,主要集中在東部,利于玉米大斑病等中后期病害發(fā)生。
 
  四、大豆病蟲(chóng)害
 
  (一)發(fā)生趨勢(shì)
 
  總體為中等發(fā)生。
 
  1.大豆根腐病總體中等發(fā)生,北部及東部大豆主產(chǎn)區(qū)雨水偏多地區(qū)、低洼易澇地塊偏重發(fā)生。新型鐮孢菌根腐病發(fā)生區(qū)域?qū)⑦M(jìn)一步擴(kuò)大,局部偏重發(fā)生。
 
  2.大豆食心蟲(chóng)中等發(fā)生,個(gè)別縣份偏重發(fā)生。
 
  3.大豆蚜蟲(chóng)、大豆紅蜘蛛中等發(fā)生,局部地塊偏重發(fā)生。
 
  4.大豆胞囊線蟲(chóng)病、大豆菌核病局部偏重發(fā)生,大豆霜霉病、大豆灰斑病、大豆褐斑病、大豆細(xì)菌性斑點(diǎn)病、大豆紫斑病等中后期葉部病害部分縣份將重于常年。
 
  5.蠐螬、地老虎、大豆根潛蠅、大豆薊馬、二條葉甲、蒙古灰象甲、網(wǎng)目擬地甲、圓跳蟲(chóng)等地下害蟲(chóng)與苗期害蟲(chóng)總體偏輕發(fā)生,局部地塊偏重發(fā)生。苜蓿夜蛾等鱗翅目食葉害蟲(chóng)在東部和北部大豆主產(chǎn)區(qū)個(gè)別地塊中等發(fā)生。雙斑螢葉甲、豆稈黑潛蠅偏輕發(fā)生,局部偏重發(fā)生,豆稈野螟、豇豆莢螟等新發(fā)害蟲(chóng)呈上升趨勢(shì)。
 
  (二)預(yù)測(cè)依據(jù)
 
  1.蟲(chóng)源基數(shù)較低。2024年秋季越冬基數(shù)調(diào)查,大豆食心蟲(chóng)全省平均蟲(chóng)食率為2.95%,較上年少0.05個(gè)百分點(diǎn),較常年均值減少0.75個(gè)百分點(diǎn);但超過(guò)防治指標(biāo)(5%)的縣份13個(gè),較上年增加3個(gè),其中,最高的嘉蔭為12%,高于上年最高基數(shù)1.4個(gè)百分點(diǎn)。大豆蚜蟲(chóng)、大豆紅蜘蛛2024年總體偏輕發(fā)生,近年來(lái)呈局部加重發(fā)生態(tài)勢(shì)。地下害蟲(chóng)蠐螬、地老虎越冬基數(shù)分別為0.17頭/平方米、0.13頭/平方米,比上年分別低0.01頭和0.04頭,比近10年均值分別低0.16頭和0.21頭。
 
  2.耕作栽培方式及氣象條件對(duì)病蟲(chóng)害發(fā)生總體有利。近年我省大豆種植面積處于高位,重迎茬面積占比超過(guò)80%,加重病蟲(chóng)害發(fā)生。氣象預(yù)報(bào),后春旱澇分布不均,對(duì)局部地區(qū)地下害蟲(chóng)、苗期害蟲(chóng)及根腐病發(fā)生為害有利;夏季降水正常,時(shí)空分布不均,主要集中在東部,北部大豆產(chǎn)區(qū)降水略少,利于大豆蚜蟲(chóng)、紅蜘蛛、食心蟲(chóng)等發(fā)生為害。
 
  五、小麥及馬鈴薯、蔬菜等經(jīng)濟(jì)作物主要病蟲(chóng)害
 
  1.馬鈴薯病蟲(chóng)害總體偏重發(fā)生。馬鈴薯晚疫病是我省常年重發(fā)的主要病害,主栽品種大部分為感病品種,預(yù)計(jì)馬鈴薯晚疫病將偏重發(fā)生。馬鈴薯早疫病、軟腐病、瘡痂病、黑脛病、黑痣病、潰瘍病、枯萎病等病害發(fā)生整體呈上升趨勢(shì)。馬鈴薯瓢蟲(chóng)及蠐螬、金針蟲(chóng)等地下害蟲(chóng)偏輕發(fā)生,個(gè)別地塊中等發(fā)生。
 
  2.小麥病蟲(chóng)害總體偏輕發(fā)生。小麥赤霉病中等發(fā)生;小麥根腐病、散黑穗病、麥蚜偏輕發(fā)生。
 
  3.蔬菜病蟲(chóng)害總體中等發(fā)生。蔬菜病害中等發(fā)生,老舊棚室、多年連作、栽培管理和防控措施不到位的設(shè)施蔬菜病害與降雨偏多、排水不暢的部分露地菜田病害將偏重發(fā)生。番茄以葉霉病、灰霉病、早疫病、晚疫病、病毒病為主,細(xì)菌性病害發(fā)生呈上升趨勢(shì)。黃瓜以霜霉病、角斑病、靶斑病、白粉病為主。辣椒以疫病、莖基腐病、黑斑病為主。菜豆以銹病、炭疽病、疫病、灰霉病為主。白菜以霜霉病、軟腐病、病毒病為主。甘藍(lán)以黑腐病、軟腐病為主。茄子以黃萎病、褐紋病、灰霉病為主。圓蔥以軟腐病、霜霉病為主。韭菜以灰霉病為主。芹菜以斑枯病、軟腐病、菌核病為主。豇豆以銹病、白粉病、炭疽病、枯萎病、根腐病為主。同時(shí)蔬菜根腐病及設(shè)施蔬菜根結(jié)線蟲(chóng)病發(fā)生呈上升趨勢(shì)。
 
  蔬菜蟲(chóng)害總體中等發(fā)生,設(shè)施蔬菜以斑潛蠅、粉虱、蚜蟲(chóng)、薊馬、葉螨、韭菜根蛆為主。露地蔬菜以小菜蛾、菜青蟲(chóng)、黃條跳甲類(lèi)、葉螨、薊馬、潛葉蠅、蘿卜蠅、蚜蟲(chóng)、甘藍(lán)夜蛾、二十八星瓢蟲(chóng)、豇豆莢螟等為主,部分地塊黃條跳甲類(lèi)、薊馬、葉螨、小菜蛾等偏重發(fā)生。新傳入的番茄潛葉蛾發(fā)生區(qū)域?qū)⑦M(jìn)一步擴(kuò)大,個(gè)別縣份棚室及露地番茄重發(fā)生。
 
  4.其它經(jīng)濟(jì)作物病蟲(chóng)害總體中等發(fā)生,局部偏重發(fā)生。向日葵病蟲(chóng)害以向日葵螟、菌核病、黃萎病、黑斑病、霜霉病為主。谷子病蟲(chóng)害以谷瘟病、白發(fā)病為主。高粱病蟲(chóng)害以高粱蚜、黑穗病為主。中藥材病蟲(chóng)害以根腐病、銹病、菌核病、白粉病、葉斑病為主。紅小豆、蕓豆、綠豆病蟲(chóng)害以銹病、細(xì)菌性疫病、白粉病、葉斑病和豇豆莢螟為主。
 
  六、檢疫性病蟲(chóng)害
 
  目前我省發(fā)生分布的檢疫性病蟲(chóng)害有馬鈴薯甲蟲(chóng)、蘋(píng)果蠹蛾、稻水象甲、大豆疫霉根腐病、腐爛莖線蟲(chóng)、瓜類(lèi)果斑病、黃瓜黑星病、番茄潰瘍病、菜豆象、水稻白葉枯病等10種。我省對(duì)俄邊境線長(zhǎng)、邊境口岸多,貿(mào)易往來(lái)頻繁,且近年臺(tái)風(fēng)頻繁登陸我省,俄羅斯境內(nèi)馬鈴薯甲蟲(chóng)等疫情入侵風(fēng)險(xiǎn)極大。在各地積極防控下,稻水象甲、大豆疫霉根腐病及蘋(píng)果蠹蛾等疫情得到穩(wěn)定控制。因雨水頻繁、灌溉水源共用等因素影響,水稻白葉枯呈逐步擴(kuò)散蔓延態(tài)勢(shì),發(fā)生區(qū)域有進(jìn)一步擴(kuò)大風(fēng)險(xiǎn)。瓜類(lèi)果斑病、黃瓜黑星病、番茄潰瘍病、菜豆象等疫情呈零星發(fā)生分布。
 
  七、農(nóng)田草害
 
  我省目前旱田已形成土壤封閉+苗后莖葉除草、水田已形成“兩封一補(bǔ)”或“一封一殺”的化學(xué)除草技術(shù)模式,無(wú)論旱田還是水田,均以土壤封閉除草方式為主導(dǎo)。由于我省南北跨度大,不同生態(tài)區(qū)輪作制度、耕作栽培等管理方式不同;加之土壤封閉主要除草劑新品種較少,各地超過(guò)產(chǎn)品登記劑量范圍使用現(xiàn)象普遍,加快了雜草群落演替,區(qū)域性惡性難防雜草呈上升趨勢(shì),為害加劇。據(jù)監(jiān)測(cè),我省大部分稻區(qū)稗草種群對(duì)氰氟草酯、五氟磺草胺、二氯喹啉酸的抗性表現(xiàn)為中等至高抗,野慈姑、雨久花對(duì)吡嘧磺隆、芐嘧磺隆等磺酰脲類(lèi)抗性較普遍;部分地區(qū)玉米田狗尾草、馬唐、稗草等對(duì)煙嘧磺隆、莠去津表現(xiàn)為高抗;大豆田反枝莧、鴨跖草、卷莖蓼、打碗花等對(duì)氟磺胺草醚抗性表現(xiàn)為中等至高抗。同時(shí),氣象預(yù)報(bào),春季氣溫略高,降水略多,5、6月份有階段性低溫,利于雜草發(fā)生,預(yù)計(jì)農(nóng)田草害將重于常年。
 
  八、農(nóng)田鼠害
 
  2024年42個(gè)縣份秋季鼠情監(jiān)測(cè),平均鼠密度(百夾捕獲率)為4.46%,低于上年1.2個(gè)百分點(diǎn),較近5年均值低1.6個(gè)百分點(diǎn),但仍處于較高水平,鼠密度較高的縣份有饒河、嘉蔭、雞東、同江、湯原,分別為13.2%、13%、10.8%、10.6%、10%。近年來(lái)我省免耕面積增加,利于鼠害發(fā)生。2025年,預(yù)計(jì)未開(kāi)展統(tǒng)一滅鼠的農(nóng)田區(qū)域鼠害將中等至偏重發(fā)生,為害將重于去年,重點(diǎn)發(fā)生在農(nóng)草、農(nóng)林交錯(cuò)地帶、沿江(河)流域、部分水田區(qū)及蔬菜、中藥材等經(jīng)濟(jì)作物區(qū)。
 
  植保部門(mén)將隨時(shí)關(guān)注我省氣候特征的變化,密切監(jiān)測(cè)病蟲(chóng)發(fā)生動(dòng)態(tài),加強(qiáng)會(huì)商研判,及時(shí)滾動(dòng)訂正預(yù)測(cè)結(jié)論。病蟲(chóng)發(fā)生趨勢(shì)預(yù)測(cè)僅供參考,更準(zhǔn)確的預(yù)報(bào)請(qǐng)參考省植檢植保站臨近預(yù)報(bào)。
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