028-27015253 028-66876901(2)
董事會(hui)辦(ban)公(gong)室028-66848862
四川省成都市簡陽市平泉街道
今年春季，陜西獼(mi)(mi)(mi)猴桃(tao)(tao)種植區域持(chi)續(xu)低(di)溫多(duo)雨(yu)。持(chi)續(xu)低(di)溫多(duo)雨(yu)極(ji)易導(dao)致(zhi)獼(mi)(mi)(mi)猴桃(tao)(tao)花腐病(bing)的(de)發生，該(gai)病(bing)會(hui)引(yin)起獼(mi)(mi)(mi)猴桃(tao)(tao)大量落花落果(guo)，嚴重影響獼(mi)(mi)(mi)猴桃(tao)(tao)的(de)產(chan)量。那么，獼(mi)(mi)(mi)猴桃(tao)(tao)花期如(ru)何識別和預防防治花腐病(bing)呢？
1、危害癥(zheng)狀
花(hua)(hua)(hua)腐(fu)病(bing)主要危害花(hua)(hua)(hua)和(he)(he)葉片(pian)(pian)(pian)。發病(bing)初期(qi)，獼猴(hou)桃花(hua)(hua)(hua)蕾和(he)(he)萼片(pian)(pian)(pian)出(chu)(chu)現黃(huang)(huang)褐色凹(ao)陷斑點(dian)(dian)。遇到(dao)陰雨天氣病(bing)菌迅速擴展(zhan)至花(hua)(hua)(hua)蕾內部，導致柱頭、花(hua)(hua)(hua)瓣變為橘黃(huang)(huang)色。病(bing)菌侵入子房后(hou)，常常引起大量落(luo)蕾、落(luo)花(hua)(hua)(hua)，偶爾(er)能發育成小(xiao)果(guo)，后(hou)期(qi)會出(chu)(chu)現落(luo)果(guo)。染(ran)病(bing)花(hua)(hua)(hua)瓣掉落(luo)在葉片(pian)(pian)(pian)上，葉片(pian)(pian)(pian)呈褐色斑點(dian)(dian)，且逐(zhu)漸擴大，最終導致整葉腐(fu)爛，凋萎下垂。
