Effect of Fermentation Extracts against Bemisia tabaci on Chilli Pepper (Capsicum annuum)

Abstract

This experiment was aimed to determine the effects of application of fermentation extracts on the development of pepper yellow leaf curl and whitefly on chilli. Experiment arranged in a completely randomized block design with four treatments (water as control, fermentations extracts named TSNGlu, BP4, and BP4Glu). The results showed symptoms in the form of curling of young leaves. The color of the leaves was relatively green. Yellow symptoms commonly found when severe were not found in the experiment. The symptoms of severe disease are marked in yellow at the top of the leaf and remain green at the bottom. The laboratory used 350 lux (underexposed light) so the symptoms become slight. ack of light intensity made plants etiolated and could not carry out photosynthesis properly. Each experiment consisted of 4 fermentation extract treatments. Each treatment. Overall, all treatments without fermentation and also AUDPC of the disease did not significantly affect the treatment of fermented extract both the incidence and severity of the low pepper yellow leaf curl virus. The treatment by spraying did not significantly affect the population of whitefly, except at 7 days after infestation, inversely proportional to the spraying treatment by means of discharge significantly affected from 14 days after infestation. The increase in plant height spray treatment did not have a significant effect and for spraying treatment with extraction of fermentation did not significantly affect the canopy area of ​​the plant canopy.

Control of Pepper yellow leaf curl Indonesia virus and Its Vector (Bemisia tabaci Genn.) on Chili Plants (Capsicum annum L.) Using Resistant Variety and Insecticide Application

“…One of the most damaging diseases of chili in Indonesia is chili yellow leaf curl disease caused by Pepper yellow leaf curl Indonesia virus (PepYLCIV) [1]. Chili yellow leaf curl disease has become an endemic disease in chili plantations in many parts of Indonesia [2]. This disease spreads easily and can cause serious yield losses ranging from 20-100% [3].…”

The Primary Inoculum Sources in the Epidemiology of Pepper Yellow Leaf Curl Indonesia Virus on Chili Plants

“…(Hemiptera: Aleyrodidae) have become major limiting factors of chili production in the country. The vector can cause direct damage to plant by sucking the plant sap, reducing yield up to 80% (Inayati and Marwoto, 2015), while the virus infection can cause total yield loss (Munandar andSuwandi 2021, Santoso et al, 2016;Setiawati et al, 2007). PepYLCIV-infected plants show typical symptoms of leaf yellowing, vein clearing, vein thickening, curling, cupping; smaller leaf and fruits; and stunted plants (Dombrovsky et al, 2010;Sukada et al, 2014;Sulandari, 2006).…”