Effect of Papaya Leaf Extract with Liquid Nutrient Supplement on Aphids (Aphis craccivora) in Cowpea
DOI:
https://doi.org/10.35334/w6tkfw64Abstract
Papaya leaves have potential as a source of botanical pesticides for controlling aphids, important pests in cowpea cultivation. This study aimed to evaluate the effect of papaya (Carica papaya L.) leaf extract as a botanical pesticide against aphid (Aphis craccivora) infestation on cowpea and to assess papaya leaf extract supplemented with additional compounds, including plant nutrient solutions and other additives. The experiment was arranged in a randomized complete block design (RCBD), with blocks based on environmental variation in the greenhouse. Treatments consisted of 50% papaya leaf extract and its combination with Green Tonic, Multitonik, and detergent. Each treatment was replicated seven times, resulting in 35 experimental units. Data were analysed using non-parametric methods, namely the Kruskal-Wallis test followed by the Wilcoxon test for pairwise comparisons. The results showed that papaya leaf extract had the potential to reduce aphid populations, although it did not consistently reduce damage to leaves, flowers, and pods. Treatments combining papaya leaf extract with additional substances, particularly plant nutrient solutions, tended to show different effects compared with other treatments; however, the findings should be interpreted cautiously because a nutrient-only treatment was not included.
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