Effects of Pest Management Strategies on the Insect Pest Abundance, Plant Growth and Yield of White Radish
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Abstract
Insect pests are a persistent problem that causes significant damage to crops. Selecting effective pest control methods is therefore crucial to maintaining crop productivity. This study aimed to evaluate the effects of four pest management strategies on white radish: no management, chemical control, application of plant fermented extract, and application of bio-pesticides. The results showed that pest management methods influenced the observed number of insect pests. In particular, the treatments tended to reduce populations of leaf-damaging insects but had little effect on stem-boring insects. Among the treatments, the use of plant-fermented extract significantly promoted plant growth parameters, resulting in the highest leaf width (5.94 ± 0.54 cm) and leaf length (16.52 ± 0.99 cm). These values were significantly greater than those in the chemical control and untreated plots, but not significantly different from the bio-pesticide treatment. Furthermore, the plant extract treatment produced the highest tuber weight and yield per rai (244.67 ± 27.39 g per tuber and 2,348.8 ± 262.91 kg per rai, respectively), significantly outperforming the bio-pesticide, chemical, and untreated control treatments (which had the lowest yield). This method offers a sustainable alternative for managing insect pests.
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