Screening of Tomato Varieties/Hybrids against Aphid (Aphis gossypii Glover) under Field Condition
Neha Tomar *
Department of Entomology, College of Agriculture, Gwalior, Rajmata Vijayaraje Scindia Krishi Vishwa Vidyalaya, Gwalior 474002, Madhya Pradesh, India.
Pradyumn Singh
Department of Entomology, B. M. College of Agriculture Khandwa, Rajmata Vijayaraje Scindia Krishi Vishwa Vidyalaya, Gwalior, Madhya Pradesh, India.
Rajni Singh Sasode
Department of Plant Pathology, College of Agriculture Gwalior, Rajmata Vijayaraje Scindia Krishi Vishwa Vidyalaya, Gwalior, Madhya Pradesh, India.
NS Bhadauria
Department of Entomology, College of Agriculture, Gwalior, Rajmata Vijayaraje Scindia Krishi Vishwa Vidyalaya, Gwalior 474002, Madhya Pradesh, India.
UC Singh
Department of Entomology, College of Agriculture, Gwalior, Rajmata Vijayaraje Scindia Krishi Vishwa Vidyalaya, Gwalior 474002, Madhya Pradesh, India.
*Author to whom correspondence should be addressed.
Abstract
An investigation on screening of tomato varieties/hybrids against aphid (Aphis gossypii Glover) under field condition were conducted at Entomological Research Field, College of Agriculture, Gwalior, Madhya Pradesh, India. Eighteen varieties/hybrids were sown and different levels of aphid incidence were observed over two successive years (2022–23 and 2023–24). The result of present investigation indicated that none of the varieties/hybrids were completely free from aphid incidence. Among the eighteen varieties/hybrids, two were categorized as less susceptible, twelve as moderately susceptible and four as highly susceptible against aphid. The variety/hybrid Arka Vishal had the lowest aphid population followed by Kashi Adarsh. The highest aphid population found in variety/hybrid Vaishali which was statistically at par with Swati 444.
Keywords: Aphid, Aphis gossypii Glover, varieties, hybrids, susceptible, tomato