Pesticidal effect of naphthalene and different Botanicals against anguimous grain moth (Sitotroga cerealella)

Abstract

A lab experiment was conducted during June to October 2021 at Bangladesh Rice Research Institute (BRRI), regional station Rangpur, laboratory to assess the effectiveness of some botanicals i.e., neem (Azadirachta indica), tulsi (Ocimum tenuiflorum) and ginger (Zingiber officinale)) and chemicals (naphthalene) for the management of Anguimous grain moth (Sitotroga cerealella) of rice. The experiment was carried out Complete Randomized Design (CRD) with nine treatments (T₁=Control, T₂=5 whole dried neem leaf, T₃=0.25 ml neem oil, T₄=0.25 g ginger powder, T₅=0.25 g neem leaf powder, T₆= 0.25 g mixture of neem leaf powder and ginger powder, T₇=0.25 g Naphthalene, T₈= 5 whole tulsi leaf and T₉= 0.25 g neem seed powder) and three replications. Study among the nine treatment indicated that T₉ (0.25 g naphthalene) showed better performance in case of insect mortality and no F₁ emergence followed by T₃ (0.35 ml neem oil), T₉ (0.25 g neem seed powder) and T₆ (0.25 g mixture of neem leaf powder and ginger powder). Moderate performance was found T₅ (0.25 g neem leaf powder), T₂ (5 whole dried neem leaf) in case of insect mortality and number of F₁ emergence. But in case of seed germination T₅ (0.25 g neem leaf powder) showed better performance followed by T₇ (0.25 g naphthalene), T₉ (0.25 g neem seed powder), T₆ (0.25 g mixture of neem leaf powder and ginger powder) and T₃ (0.25 ml neem oil). So, naphthalene, neem oil, neem seed powder and neem leaf powder considered as the best treatment among nine treatments for the management of the most destructive Anguimous grain moth.

Bangladesh J. Sci. Ind. Res. 58(3), 155-162, 2023