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最近不少梨农反映:套袋鸭梨果面出现红色果锈,套袋雪花梨果面出现烟熏状果锈,不知道是何原因造成的,问如何防治?关于梨果面污染的现象,近几年在我国梨区发生较为普遍,造成梨果面污染的原因较多,应具体情况具体分析,方可找出病因,对症下药。一般造成套袋鸭梨果面污染(果锈)主要原因一是用药不当造成污染;二是果袋质量或套袋技术不当造成污染;三是病虫害造成污染。
Recently, many pear farmers reflect: bagged pear fruit surface red rust, bagged snow pear face smoked fruit rust, do not know why the cause, and asked how to prevent? On the phenomenon of pollution of pear fruit In recent years, pear district occurred more commonly in our country, resulting in pear fruit pollution for many reasons, should be specific analysis of specific circumstances before we can find the cause, the right medicine. Bagging pear fruit generally caused by surface contamination (fruit rust) one of the main reasons for improper use of drugs caused by pollution; second is the quality of bagging or improper bagging caused by pollution; third is caused by pests and diseases pollution.