| Popis: |
This study assesses the interaction, relationship and recorded several species of insectacarines pest on the underside of eggplant leaves. Variation of infestation levels by a community of insect-acarines detected on the leaves namely Whitefly Bemisia tabaci, aphids Myzus persicae, thrips Thrips palmi, mite and spider mite Tetranychus cinnabarinus caused serious damage at the initial stage of plant growth with flowering and fruiting stage. Different effects by fertilizer levels were observed affected the presence of insect-acarines and dominancy of major pest. The result also showed that all the insectspest was colonized competitively on the leaves for every sampling date due to treatments effect. Whitefly was found to be the most dominant on eggplants which resulted in more than 50% from other insect pest composition, particularly at higher fertilizer levels. Some occasions described that the predator-prey relationship has been identified as a major role in the habitat competition. There was an obvious trend of competitor pest of whitefly such as aphids’ population was found higher than whitefly in all treatments. Generally, this study suggests that the dominant species and the first invader probably could suppress or mediate the other competitor significantly once they occupied on the same quality of host plants. |
