Agrosains: Jurnal Penelitian Agronomi
Vol 23, No 2 (2021): Agrosains: Jurnal Penelitian Agronomi

Respons Ulat Grayak (Spodoptera litura) terhadap Lama Perendaman Tembakau Rajang (Nicotiana tabacum L.) sebagai Insektisida Nabati

Adi Sanjaya Hasian Silalahi (Department of Plantation Cultivation, Politeknik Negeri Lampung, Lampung)
Dedi Supriyatdi (Department of Plantation Cultivation, Politeknik Negeri Lampung, Lampung, Indonesia)
Albertus Sudirman (Department of Plantation Cultivation, Politeknik Negeri Lampung, Lampung, Indonesia)



Article Info

Publish Date
31 Oct 2021

Abstract

Tobacco is a plant that is concerned with the quality of its leaves, damage to tobacco leaves can reduce its selling value. Caterpillars (Spodoptera litura) are pests in tobacco plants that damage the leaves of tobacco plants. Extraction from parts of the tobacco plant can be used as raw material for vegetable pesticides, extracted chopped tobacco can produce alkaloids which can be used as an insecticide to control caterpillars. The purpose of this study was to obtain the best soaking time for chopped tobacco to control caterpillars. The research was carried out in the laboratory and in fields using tobacco plants as hosts for third instar caterpillar larvae by means of contact poison. The research method used a randomized block design (RBD) with the treatment of chopped tobacco for 12, 24, 36, 48 and 62 hours with five replications. The variables observed were mortality, attack intensity and duration of pupa formation. The results showed that chopped tobacco immersion was effective against army caterpillar mortality, the soaking time of chopped tobacco could also accelerate the formation of pupae and 60 hours of immersion had the best attack intensity.

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Journal Info

Abbrev

agrosains

Publisher

Subject

Agriculture, Biological Sciences & Forestry

Description

Agrosains: Jurnal Penelitian Agronomi publishes articles related to agriculture such as plant physiology, crop production, physiology and seed production, soil science, plant breeding, plant protection, agro-climatology, agroecology, and plant biotechnology. ...