Botanical insecticides to control insect pests of pechay (Brassica pekinensis Linn.)
1996
Toledano, J.L. | Lucero, N.P. (Pampanga Agricultural Coll., Magalang, Pampanga (Philippines))
A study on the botanical insecticides was conducted to determine the most effective in reducing damage of pechay caused by the insect pests. The treatments were as follows: To Control; T1 neem leaves extract (Azadirachta indica); T2 kakawate leaves extract (Gliricidia sepium); T3 makabuhai stem extract (Tinospora rumphii Boer); T4 red pepper extract (Capsicum frutescens); and T5 Malathion. The different treatments were evaluated following the procedure in RCBD. The results of the study revealed that the degree of damage and the percentage of marketable yield of pechay was significantly affected by the different botanical insecticide treatments used. Irrespective of the application of botanical insecticides, T3 and T1 gave the most favorable result on the control of insect pests of pechay
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