Abstract:
In a laboratory trial against Hypsipyla robusta, a fruit borer of Cedrela toona, DDVP 50% EC killed 100% larvae each in 0.05 and 0.03% doses and 83% larvae in 0.01% dose while Laser 25% EC gave 80, 43 and 33% kill of larvae, respectively in 0.05, 0.03 and 0.01% doses. Malathion showed poor results with 36.6 and 26.6% mortality of larvae in 0.05 and 0.03% doses, respectively. In another trial (a fumigant) caused 100% mortality of adults of stored seed pests, Caryedon serratus and Tribolium castaneum in the doses of 50, 100, 150 and 200 mg per 0.043 m3 volume. No toxic effect of phostoxin was found on the seed germination of Pinus roxoburghii, Dalbergia sissoo, Acacia modesta and A. tortilis in the above doses.
Page(s):
85-90
DOI:
DOI not available
Published:
Journal: Pakistan Journal of Forestry, Volume: 43, Issue: 2, Year: 1993