The fumigant toxicity of camphor and p-dichlorobenzene against Trogoderma variabile was studied under laboratory condition . The results showed that the mortality of larvae of T . variabile was 74%, 44% and 24%respectively with 200 g/m3,100 g/m3 and 50 g/m3 dosage of camphor after 24 h fumigation under room temperature. The mortality of larvae of T. variabile was 100%,90%and 60%respectively with 40 g/m3,20 g/m3 and 10 g/m3 dosage of p-dichlorobenzene after 24 h fumigation under same conditions.The LD50 of camphor and p-dichlorobenzene was 1 . 066 mg/m3 and 0 . 375 mg/m3 respectively . The mortality of adult of T . variabile was 100%, 80% and 60%respectively with 200 g/m3,100 g/m3 and 50 g/m3 dosage of camphor after 24 h fumigation,the mortality all reached 100%with 40 g/m3,20 g/m3 and 10 g/m3 dosage of p-dichlorobenzene.%室内测定了樟脑和对二氯苯2种防蛀剂对花斑皮蠹的熏蒸效果.结果表明：处理剂量为200、100、50 g/m3时樟脑对花斑皮蠹幼虫的熏蒸死亡率分别为74%、44%和24%；处理剂量为40、20、10 g/m3时对二氯苯对花斑皮蠹幼虫的熏蒸死亡率分别为100%、90%和60%,熏蒸活性与剂量均呈正相关；樟脑和对二氯苯对花斑皮蠹幼虫的致死中量（LD50）分别为1.066 mg/m3和0.375 mg/m3,说明对二氯苯对花斑皮蠹幼虫的熏蒸毒力要优于樟脑.处理剂量为200、100、50 g/m3时樟脑对花斑皮蠹成虫的熏蒸死亡率分别为100%、80%和60%；处理剂量为40、20、10 g/m3时对二氯苯对花斑皮蠹成虫的熏蒸死亡率均为100%,说明对二氯苯对花斑皮蠹成虫的熏蒸活性较高.
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