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A. Gopikrishnan

Publications (4)

Whitefly Screening of Brinjal (Solanum melongena L.) through Insecticide and Plant Extracts

P. Thilagam, A. Gopikrishnan & S. Srividhya · Asian Research Journal of Agriculture · 2024

Eight pesticides and five plant extracts were evaluated for efficacy against brinjal whitefly during rabi (2018-19) and kharif (2019-20) at Agricultural Research Station in Virinjipuram, Vellore, Tamil Nadu. Acetamiprid 20 SP @ 0.3 g l-1, imidacloprid 17.8 SL @ 0.5 ml l-1, spirom...

Open access Research Article 10.9734/arja/2024/v17i4615

Field Bio Efficiency of Insect Growth Regulators and Insecticides against Pod Fly, Melanagromyza obtusa in Pigeonpea (Cajanus cajan, L.)

P. Thilagam, A. Gopikrishnan, S. Srividhya, K. Sasikumar & M. Deivamani · Journal of Experimental Agriculture International · 2024

The present study on the bio efficacy of insect growth regulators and insecticides on pod fly was carried out during kharif 2021 in pigeonpea using Co 7 variety. An experiment was laid out using a randomized block design (RBD) with seven treatments and three replications. Insecti...

Open access Research Article 10.9734/jeai/2024/v46i113079

Heterosis and Combining Abilities Studies in Okra [Abelmoschus esculentus (L.) Moench]

S. Nanthakumar, C. Kuralarasu & A. Gopikrishnan · Current Journal of Applied Science and Technology · 2021

Aim: Genetically complementary parents and amount of heritability of economic traits determines the successful development of breeding population, hybrids and varieties. The studies on heterosis and combining ability are useful in formulating effective breeding strategies and sel...

Open access Research Article 10.9734/cjast/2021/v40i3031543

The Insecticidal Action of the Premix Formulation of Spinetoram and Methoxyfenozide against Non-target Insects of Pigeon Pea

P. Thilagam, S. Srividhya, E. Jamuna, A. Gopikrishnan & M. Deivamani · Asian Research Journal of Agriculture · 2025

The present study was conducted to investigate the efficacy of premix formulation of spinetoram and methoxyfenozide towards predatory insects viz., coccinellids and spiders. Many insecticides have been evaluated against these pests without considering the specificity to manage th...

Open access Research Article 10.9734/arja/2025/v18i1637