保护地辣椒灰霉病发生规律与防治技术初探

Occurrence and Control Technology of Pepper Botrytis cinerea in Protected Areas

辣椒灰霉病在淮安市发病高峰期为4月中旬至5月中旬,辣椒品种苏椒5号、宁椒5号、洛椒7号的抗病性比其他品种稍强一些;温暖高湿的气候条件易导致辣椒灰霉病的流行;辣椒灰霉病露地栽培比棚内栽培发病轻,具滴灌设备的棚内栽培比漫灌的棚内栽培发病轻;每公顷栽4.5万株辣椒灰霉病发生轻;药效试验表明2.5%适乐时悬浮种衣剂500～800倍液对辣椒灰霉病防治效果好。

Pepper Botrytis cinerea is a very serious disease in Huai＇an city,in order to find out the laws of its incidence,we carried out experimental research.The results showed that Pepper Botrytis cinerea incidence peak from mid April to mid May;The pepper varieties Sujiao No.5,Ningjiao No.5,Luojiao No.7 resistance stranger than other varieties shoot;Warm and humid climatic conditions led to the prevalence of Pepper Botrytis cinerea;Pepper Botrytis cinerea cultivation in open field cultivation of incidence easier than shed light,drip irrigation equipment inside the shed cultivation cultivation cushier than the incidence of flooding light;The density of 45 000 plants/ha was lighter than other densities 2.5% Table Celest 500 ~800 times could control of Pepper Botrytis cinerea effectively.