Incidence and Damage Estimation of Brinjal Shoot and Fruit Borer in Five Different Brinjal Varieties

Abstract

An experiment was conducted to observe the incidence of brinjal shoot and fruit borer, Leucinodes orbonalis Guen. and to estimate their damages in five different brinjal varieties (viz. Laffa, Dohazari, Uttara, Islampuri and Amjuri) in the Plant Pathology Field Laboratory, Bangladesh Agricultural University, Mymensingh during the period from January to March, 2007. Peak period of brinjal shoot and fruit borer infestation was observed in March in all the five varieties. Maximum number of population (5.0 per plant) was recorded in Amjuri variety in first week of March whereas minimum number of population (0.33 per plant) was observed in Dohazari variety in the third week of March. No infestation was found from 3 rd week of January to 3 rd week of February in all the five tested brinjal varieties. Brinjal shoot and fruit borer caused damages to shoots and fruits of brinjal plant and it was found that all the tested brinjal varieties are susceptible to the borer. In case of all tested varieties, mean number of damaged shoots and fruits per plant differed significantly at different sampling times. Among the five varieties Amjuri was heavily infested with the highest infestation of shoot and fruit. In this variety, mean number of damaged fruit per plant was 2.11, 1.67 and 1.87 at first, second and third week of March, respectively. In Islampuri variety, shoot infestation was found only in the 3 rd week of March.

Influence of Weather Factors on Incidence and Infestation of Shoot and Fruit Borer in Brinjal

“…The present investigation was also in accordance with Ara et al [14] who reported maximum shoot (1.44 per plant) and fruit damage (0.74 per plant) at the 2 nd week of March in "Laffa" variety. In "Dohazari" variety maximum shoot damage (1.55 per plant) and fruit damage (0.46 per plant) were recorded at 2 nd week of March and 4 th week of February, respectively.…”

Persistence, dissipation behavior and health risk assessment of spiromesifen in brinjal (Solanum melongena L.) by LC-MS/MS

“…Farmers have been cultivating it over the years due to higher profit, relatively fast-growing capacity, and low-risk involvement and easy technological adoption (Anonymous, 2019). Several insects and pests attack the brinjal, including mites, eggplant shoot and fruit borers, leafhoppers, ants, stem borer and epilachna beetles, which cause major crop damage and low yields about 70-80% worldwide (Ara et al, 2007, Borkakati et al, 2019and Gautam et al, 2019. Hence, this study was conducted to find out the low-cost and effective plant-based pesticides to protect the brinjal field from pest attack.…”

Management of Brinjal Fruit and Shoot Borerleucinodes orbonalis (Guenee) (Lepidoptera: Crambidae) through Trichogramma chilonis (Ishii) (Hymenoptera: Trichogrammatidae) and Selective Use of Insecticides

“…About 12-16 % damage to shoots and 20-60% to fruits is caused only by larvae of brinjal fruit and shoot borer (Ahmad et al, 2008). The attack of this pest is very serious in summer and rainy season and causes more than 90% damage (Ara et al, 2007).…”