20.500.12556/RUL-180467 Relative abundance and impact of insect pests on watermelon fruit yield in a rainforest environment Relativna številčnost in vpliv škodljivih žuželk na pridelek plodov lubenic v okolju deževnega gozda In the rainforest zone of Nigeria, published information on the composition, relative abundance and population densities of different pests on watermelon is limited. This study was carried out to determine the insect pests associated with watermelon, their relative abundance population densities and induced yield loss at different crop growth stages. The watermelon plants were protected with weekly applications of lambda-cyhalothrin at pre-flowering, flowering, post-flowering/fruiting, or throughout the growth period (full protection), while control plots received no protection. Insect pests found were Aulacophora nigripennis Motschulsky, 1857, Aulacophora hilaris (Boisduval, 1835), Aulacophora indica (Gmelin, 1790), Aulacophora africana (Weise, 1903), Phyllotreta cruciferae (Goeze, 1777), Epilachna chrysomelina (Fabricius, 1787) and Coridius viduatus (Fabricius, 1794). The yield of watermelon on the three varieties across the different stages of protection differed significantly from each other in both seasons. Full-protection plots significantly produced more fruit yield, followed by protection-at-flowering, protection-at-post-flowering, and protection-at-pre-flowering, while no-protection plots produced the least yield. The protected-at-flowering plots recorded the lowest percentage in yield reduction, while yield reduction in the remaining different stages of protection were more than 50 % in both seasons making the flowering stage the critical stage of protection. control watermelon lambda-cyhalothrin insect pests damage Aulacophora nigripennis Aulacophora hilaris Aulacophora indica varstvo rastlin lubenica lambda-cihalotrin škodljive žuželke škoda true false true Angleški jezik Slovenski jezik Članek v reviji 2026-03-10 09:34:37 2026-03-10 09:34:43 2026-03-11 04:38:31 0000-00-00 00:00:00 2026 0 0 7 str. no. 1 Vol. 122 2026 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 632 1854-1941 10.14720/aas.2026.122.1.21715 271081219 OMOLE+et+al.+(O).pdf OMOLE+et+al.+(O).pdf 1 E528907506CC24D92EE666C488612ED3 c907219e82eb0c6740dcb85545e9704aa3646bae02ac25cd25261d101bf118cc aa17516e-1c5b-11f1-a1ba-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=229888 https://journals.uni-lj.si/aas/article/view/21715/21081 1 908b7c83-1c5b-11f1-a1ba-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=229887 Biotehniška fakulteta Acta agriculturae Slovenica 0 0 0