Determination The Damage Rate of Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) in Different Tomato Varieties Grown in The Open Field in Diyarbakır Province

Authors : Ozan Akat, Selime Ölmez Bayhan

Pages : 227-234

View : 61 | Download : 64

Publication Date : 2023-12-29

Article Type : Research Paper

Abstract :Tomato ranks first among tradable agricultural products in terms of production-consumption amounts in the world. Tomato is one of the most important vegetables in the world and in our country due to its importance in human nutrition and its wide range of uses in the food industry such as frozen, canned, tomato paste, ketchup, tomato pickle, tomato juice. Tuta absoluta (Meyrick, 1917) (Lepidoptera: Gelechiidae) is the main pest in tomatoes. In 2022, a study was carried out on 3 tomato varieties (Alaturka F1, Falcon, Eastern H-2274) and Lice tomato and Karacadağ tomato genotypes specific to the region in order to determine the damage rate of different tomato varieties cultivated in open field in Diyarbakır province. The fruits and leaves of at least 20 random plants of each tomato variety and genotype were checked and the damage rate was determined. In the fruits of tomato varieties that are commercially grown in Diyarbakır Province; The damage rate was 29.09% in Falcon variety, 32.55% in H-2274 variety and 27.14% in Alaturka F1 variety. Among genotypes; It was 37.83% in Lice tomatoes and 33.33% in Karacadağ tomatoes. In the leaves of tomato varieties that are commercially grown in Diyarbakır Province; The damage rate was 49.26% in Falcon variety, 58.68% in H-2274 variety and 45.45% in Alaturka F1 variety. Among genotypes; It was 47,52% in Lice tomatoes and 54.06% in Karacadağ tomatoes. It is known that the rate of damage varies depending on many factors. The damage rate data obtaıned at the end of our study were also compared wıth the characterıstıc features of the varıetıes and genotypes. The hardness of the flesh of Alaturka F1 variety was the hardest and Falcon, H-2274, Karacadağ and Lice were ranked respectively. It was determined that the flesh thickness of the fruits of Lice genotype was softer than the fruits of other varieties and genotypes. For this reason, it is thought that the damage to the fruits of Lice genotype is higher. According to the findings, hairiness was the highest in Lice genotype, followed by Karacadağ, Falcon, H-2274, Alaturka F1. In this context, when the leaf damage rate and hairiness structure were evaluated, it was determined that Lice genotype was the most resistant species after Alaturka F1 variety. The fact that Alaturka F1 variety is more resistant than Lice genotype can be explained by the fact that this variety is a hybrid variety.
Keywords : Tuta absoluta, Zarar oranı, Diyarbakır, Domates