S. PADMAVATHI*, J. MANJUNATH, M. RAJASRI AND B.H. CHAITHANYA Department of Entomology, S.V. Agricultural College, ANGRAU, Tirupati-517 502. ABSTRACT A fixed plot survey was conducted to study the incidence of sucking insect pests and pink bollworm in cotton fields of Nandyal and Kurnool districts of Andhra Pradesh during 2023-2024 at monthly intervals. Among the sucking […]
B. KEERTHANA*, M.S.V. CHALAM, P. RADHIKA, P. LAVANYA KUMARI AND K. MANJULA Department of Entomology, S.V. Agricultural College, ANGRAU, Tirupati-517 502. ABSTRACT A study was carried out at the Department of Entomology, S.V. Agricultural College, Tirupati on the larval taxonomy of lepidopteran pest complex in castor. Four lepidopteran larvae viz., Spodoptera litura (Fabricius), Achaea janata (Linnaeus), Ergolis merione (Cram) and Conogethes […]
R. CHELSIA*, K. MANJULA, P.N. HARATHI AND M. GURIVI REDDY Department of Entomology, S.V. Agricultural College, ANGRAU, Tirupati-517 502. ABSTRACT The pathogenicity test of unformulated entomopathogenic fungal isolate Bb. Cd (Beauveria bassiana) (Balsamo) Vuillemin isolated from Chandragiri village were conducted against third instar Spodoptera litura (Fabricius) larvae maintained at three different temperatures viz, 15°C, 25°C and 35°C under laboratory […]
M. JAHNAVI*, T. LAKSHMI, M. SATHISH RAHUL AND Y. REDDIRAMU Department of Agril. Extension Education, S.V. Agricultural College, ANGRAU, Tirupati-517 502. ABSTRACT The study was conducted to know the profile of cotton growers in light soils of Kurnool district of Andhra Pradesh over a randomly drawn sample of 120 cotton growers and the results revealed […]
G. RAMYA RISHITHA*, I. PARAMASIVA, M.S.V. CHALAM AND P. MADHUSUDAN Department of Entomology, S.V. Agricultural College, ANGRAU, Tirupati-517 502. ABSTRACT The level of insecticide resistance acquired by field collected brown plant hopper populations, Nilaparvatha lugens after 24 hours and 72 hours exposure to four insecticides thiamethoxam, pymetrozine, dinotefuran, and acephate was studied in comparison with the laboratory […]
P.V. MADHUSUDHAN*, M. SHANTHI PRIYA, I. SUDHIR KUMAR AND N.V. SARALA Department of Genetics and Plant Breeding, S.V. Agricultural College, ANGRAU, Tirupati-517 502. ABSTRACT Combining ability for yield and yield attributing traits was studied in 60 crosses made by using Line × Tester mating design involving 30 lines and 2 testers which were evaluated along […]
R. BHARGAVI*, K. RAGHAVENDRA CHOWDARY, T. LAKSHMI AND G.L. SIVA JYOTHI Department of Agricultural Extension Education, S.V. Agricultural College, ANGRAU, Tirupati-517 502. ABSTRACT The present investigation was carried out in Chittoor district of Andhra Pradesh. The study was purposively conducted in the Chittoor district as it is the hub for many Agri and allied sector […]
G. BHAVITHA*, P. BALA HUSSAIN REDDY, K. RAGHAVENDRA CHOWDARY, S. UJWALA RANI AND T. LAKSHMI Department of Agricultural Extension Education, S.V. Agricultural College, ANGRAU, Tirupati-517 502. ABSTRACT Onion is one of India’s most highly watched agricultural commodities. Onion prices have a direct impact on the average person’s consumption basket. After China, India is second in […]
G. SREEHARSHITHA*, K. DEVAKI, M. RAVEENDRA REDDY, J. MANJUNATH AND B. RAMANA MURTHY Department of Entomology, S.V. Agricultural College, ANGRAU, Tirupati-517 502. ABSTRACT The objective of the investigation is to study the diversity of Bacillus thuringiensis and actinomycetes in groundnut field during kharif 2022 after pesticide spray with different spray appliances viz., knapsack sprayer, power sprayer and drone sprayer. Foliar application of […]
A. ANUSHA REDDY*, B. RUPESH KUMAR REDDY, S. VASUNDHARA AND R. NARASIMHULU Department of Seed Science and Technology, S.V. Agricultural College, ANGRAU, Tirupati-517 502. ABSTRACT The critical stages during early crop growth are uniform seed germination, early seedling growth, and uniform plant stand. Low crop yield is attributed to uneven seed germination and seedling growth. […]