womencongguoshubinghailiuxingdesandayaosurushoutantaoguoshuzhenjunxingbinghaidefangzhiwenti
，jiubunanfaxian
，ziranjiecunzaidaliangdezhibingliqiangdebingyuanwu
，womengenbenwufajiangtamenmiejue。xianxingdefangzhifangfadaduoshulizuyuqiudongjiqingsaoluoye，zhaichujiangguo，guashupi
，jizhongshaohuihuoshenmaihechunjipenbushiliuhejiqingyuan，tongguochanchuyuedongjunyuan，降低發病的指數。目前栽培作物中，許多優質高產品種都是感病寄主，選育抗性品種還是一個任重道遠的課題。因此


，這兩個因素是我們當前無法克服的。我們經常強調“有收無收在於水，收多收少在於肥”，但加強水分的管理，尤其是依賴大肥大水提高產量
、忽hu視shi質zhi量liang的de果guo園yuan
，常chang常chang因yin此ci導dao致zhi果guo園yuan病bing害hai流liu行xing和he減jian產chan，甚shen至zhi絕jue收shou。歸gui根gen結jie底di
，果guo園yuan真zhen菌jun性xing病bing害hai暴bao發fa與yu降jiang雨yu和he濕shi度du大da密mi切qie相xiang關guan。所suo以yi，有you人ren總zong結jie為wei“都是雨多惹的禍”，此話是一點不假。

　　我(wo)們(men)知(zhi)道(dao)，病(bing)菌(jun)要(yao)危(wei)害(hai)果(guo)樹(shu)，首(shou)先(xian)是(shi)病(bing)菌(jun)的(de)孢(bao)子(zi)萌(meng)發(fa)，然(ran)後(hou)開(kai)始(shi)通(tong)過(guo)風(feng)雨(yu)傳(chuan)播(bo)，接(jie)觸(chu)到(dao)寄(ji)主(zhu)，並(bing)從(cong)寄(ji)主(zhu)的(de)氣(qi)孔(kong)或(huo)傷(shang)口(kou)入(ru)侵(qin)
，吸(xi)收(shou)果(guo)樹(shu)的(de)營(ying)養(yang)物(wu)質(zhi)
，營(ying)寄(ji)生(sheng)生(sheng)活(huo)
，從(cong)而(er)導(dao)致(zhi)果(guo)樹(shu)不(bu)能(neng)正(zheng)常(chang)生(sheng)長(chang)發(fa)育(yu)。而(er)病(bing)菌(jun)的(de)萌(meng)發(fa)
、chuanboheruqin
，meiyoushuidecanyushibuxingde。suoyifangzhibinghai，qingyuanxiaomiejunyuanshifenguanjian，tigaoshutikangxingshijichu，qicishizaoqiyufanggongzuo。womenshiyongdeshajunjizhongyouyizhongjiushibaohuxingshajunji，tadeyuanlijiushiyongshuixishiyaoji
，bingjunyundipenwudaozuowudebiaomian，congerxingchengyicengzhimideyaomo
，zhegeyaomotouqitouguangyetoushui，dannengyouxiaoshasijiechudaotadebingjun，dadaobaohuzuowubushoubingjunweihaizhimude。zaishiyongbaohuxingshajunjideguochengzhong，yaozhuyitadechixiaoqi，yinweijihusuoyoubaohuxingshajunjidechixiaoqiwei7~10天(tian)
，所(suo)以(yi)要(yao)定(ding)期(qi)噴(pen)藥(yao)保(bao)護(hu)，防(fang)止(zhi)病(bing)菌(jun)乘(cheng)機(ji)入(ru)侵(qin)。對(dui)於(yu)已(yi)經(jing)染(ran)病(bing)的(de)果(guo)樹(shu)，我(wo)們(men)可(ke)以(yi)選(xuan)用(yong)治(zhi)療(liao)性(xing)殺(sha)菌(jun)劑(ji)，通(tong)過(guo)其(qi)內(nei)吸(xi)傳(chuan)導(dao)作(zuo)用(yong)殺(sha)死(si)病(bing)菌(jun)，控(kong)製(zhi)病(bing)斑(ban)的(de)擴(kuo)展(zhan)和(he)蔓(man)延(yan)。眾(zhong)所(suo)周(zhou)知(zhi)，蘋(ping)果(guo)的(de)早(zao)期(qi)落(luo)葉(ye)病(bing)、炭tan疽ju病bing和he輪lun紋wen病bing等deng春chun季ji以yi傳chuan播bo侵qin染ran為wei主zhu，然ran後hou在zai果guo實shi或huo葉ye片pian內nei潛qian伏fu下xia來lai，中zhong後hou期qi才cai發fa病bing顯xian現xian病bing狀zhuang。如ru果guo前qian期qi侵qin染ran成cheng功gong，中zhong後hou期qi還hai會hui重zhong複fu侵qin染ran。早zao期qi預yu防fang不bu及ji時shi，勢shi必bi會hui給gei後hou期qi防fang治zhi帶dai來lai困kun難nan。由you此ci可ke見jian，蘋ping果guo花hua後hou到dao幼you果guo期qi重zhong點dian使shi用yong保bao護hu性xing殺sha菌jun劑ji普pu德de金jin、或噴富露、或大生富等定期預防，進入6月份適當噴布具內吸作用的治療性殺菌劑如納米欣
、金力士、duojunlingdengzhuishayijingqinrudebingjun。xiajiduoyushi，zexuyaojixupenbubaohuxingshajunjifangzhibingjundezaiciruqin。chuxianbingqing，haikeshiyongzhiliaoxingshajunjiyuyizhiliao。biyaoshiliangzhejiaotishiyong


，keyichongfenfahuifangzhixiaoguo。