木瓜果實疫病品種罹病情形調查及其防治試驗

Abstract

木瓜疫病為本省木瓜栽培上的一種重要病害，為害根莖果實等部位。本文曾就部分木瓜品種間罹病情形加以調查，一為民國58年颱風後落果調查，各品種病果率為9.7%~93.3%，平均37.8%。另一為62年間樹上果實之調查，各種病果率為8.1%~32.0%，平均16.5%。 Phytophthora blight of papaya caused by P. palmivora is an important disease in Taiwan. The percentage of infection on the fallen fruits after typhoon was 9.7% to 93.3% in1969, but on the hanging fruits was only 8.1% to 32.0% in 1973 depended on the varieties of papaya. The average infection of the investigated varieties was 37.8% for the former and 16.5% for the latter.