Infestation Rates, Seasonal Abundance of Aphids and Relationships with Some Environmental Factors in Different Forest Habitats in Southwestern Türkiye

Authors : Şükran Oğuzoğlu, Mustafa Avcı

Pages : 115-132

Doi:10.17475/kastorman.1557386

View : 112 | Download : 165

Publication Date : 2024-10-03

Article Type : Research Paper

Abstract :Aim of study: It was to determine the infestation rate and seasonal abundance of aphids and their relationships with some environmental factors in forests. Area of study: The study was conducted in Pinus nigra, P. brutia, Cedrus libani, Abies cilicica, Juniperus spp., Quercus spp. and Robinia pseudoacacia forests (34 sampling areas) in Isparta. Materials and methods: Systematic sampling was carried out monthly throughout April-October in 2019-2020. As aphid density and infestation rates were determined, 30 cm shoots were taken from 10 trees. The slope, aspect, elevation, forest characteristics, daily minimum, average, and maximum temperature and total precipitation were recorded. Main results: Abundance were highest in P. nigra, Quercus and Robinia pseudoacacia forests in both years. There was a significant correlation between abundance and development stages (p<0.05). Additionally, abundance showed a negative relationship with minimum temperature in July 2019, maximum temperature in September 2019, and a positive relationship with precipitation in October 2019. In July 2020, abundance showed a negative relationship with both average and maximum temperatures, while in August 2020, there was a positive relationship with average temperature. Research highlights: It is believed that tree species, development stages and climatic conditions are effective factors on infestation and abundance parameters.
Keywords : Yaprak Biti, Orman Ekosistemi, Popülasyon, Yoğunluk