Species and population distribution of plant aphids in agrobiocenose of southeast regions of Uzbekistan

Tashkent State Agrarian University, Tashkent, 100140, Uzbekistan

^* Corresponding author: a.rustamov@tdau.uz

Abstract

In the years 2022 and 2023, comprehensive investigations and experiments were conducted in the Sardoba district of the Syrdarya region. These efforts aimed to address the threat posed by plant aphids to cotton, vegetable, and rice crops. In 2022, scientific interventions were carried out across a total area of 130 hectares, followed by an expansion to 180 hectares in 2023. The scientific endeavors were centered on identifying and systematically analyzing the types of pests prevalent in the vegetable agrobiocenosis of the Syrdarya region. The research findings revealed the widespread presence of various pests, including moths, white butterflies, spider mites, and plant aphids. Among these, special attention was directed towards studying members of the Aphididae family within the Homoptera order. Moreover, the investigation extended to identifying their natural predators, known as entomophagous species. Specifically, entomophagous species such as Coccinella septempunctata, Chrysopa carnea, and Lysiphlebus fabarum were identified as playing significant roles in regulating the population of plant aphids and maintaining ecological balance. These genera act as natural enemies of aphids, helping to control their numbers and prevent widespread infestations that could damage agricultural crops. This holistic approach not only mitigates the negative impacts of pest outbreaks but also fosters biodiversity and ecosystem resilience. The findings of these investigations provide valuable insights into the ecological dynamics of agricultural ecosystems in the Syrdarya region, Uzbekistan and contribute to the development of integrated pest management practices.