关键词: 船舶, 蟑螂, 密度, 毒饵, 杀灭效果

Abstract: The experiment applied "cockroach & ant Bait" (commercial product) as a insecticide against Blattella germanica were carried out both in laboratory and on the ocean-going ship on a large scale. The results showed that in 80×40×30cm experimental cabinet the test divided into four groups, the LT₅₀ was 6.39-10.1 days. The Baits were applied on a large scale on ship, the average pesticidal rate was 71.6% within 5 days, 93.2% within two weeks, 95.4% for a month and 99.6% for 3 months after treating with the Baits. By that time it could hardly find the pest. The species of cockroach on ship were discussed, and described why traditional way treated with spray on ship did not achieve ideal effectiveness and some caution of managing Baits were also discussed.They advocated that the baits may be used ona wide range(a large scale) whether in high density of cockroach or in low.