Abstract
The study focused on the economic profitability of the utilization of homemade organic pesticide for small scale production of Brassica napus L. varchinensis (Pechay). An experiment was undertaken at the Palayamanan Program at the University of Eastern Philippines to determine the effectiveness of homemade organic pesticide in controlling or preventing insect infestation in Pechay, to find out the effective level of this homemade pesticide and to determine the economic profitability of using homemade organic pesticide and insecticide. To explore the use of homemade extract from garlic, Allium sativum L., hot pepper, Capsicum frutescens L., vinegar and mineral oil in the management of insect pests of Pechay. The design used was the randomized complete block design (RCBD) and the data gathered were statistically analyzed using ANOVA and DMRT at 5% level of significant. There were five treatments made up of 50% extracted organic insecticide diluted in 500ml and 1 litter of water treatment before the insects will attack (pre–treatment) in weekly intervals and separate application of the same formulation of the treatment after the insect will attack (post-treatment) two days interval and control without any treatment. The result of the study showed that those that gained higher profitable weight in treatment plots were the post – treatment.
Highlights
treatment 2 (T2) = 50% of homemade organic pesticides was diluted in a clean spray plastic bottle
During the second and third week the population of flea beetles were significantly higher in treatment 4 (T4) and treatment 5 (T5)
treatment 1 (T1) had higher population based on actual observation, followed by the corresponding treatments T2 and treatment 3 (T3) which had shown lower in population density
Summary
Damage by insect pests in the field effects the yield and market value of the crop (Zehnder, et al, 1997). The current awareness by the public that synthetic pesticides leave harmful residues in crops produced for human consumption has led to an increased interest in using natural products for pest control. The way forward is to produce highly effective plant protection products that are readily available, safe to the environment, wildlife and consumers (Fening, et al, 2011). Among the advantages of homemade organic pesticides are: it is environment friendly as compared to conventional pesticides and are often effective in very small quantities, thereby offering lower exposure and it decomposes quickly leaving virtually residue; it can offer good crop yield while dramatically reducing the use of conventional pesticides; and it engages family labor
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