Efficacy of Selected Plant Extracts to Control Leaf Miner (Lyriomyza spp.) in Chrysanthemum

Abstract

The use of eco-friendly methods in controlling pest and diseases has become an increasing concern in production system in many economically important crops, including ornamentals. The application of plant extract that has an insecticidal effect is considered as one promising alternative in reducing the negative effects of synthetic pesticides. The research was conducted to assess selected plant extracts in several concentrations against leaf miner (Lyriomyza spp.) in chrysanthemum. The experiment was carried out from January to December 2017 under plastic house conditions at the Indonesian Ornamental Crops Research Institute (IOCRI). The extracted organ of insecticidal plants regularly sprayed into chrysanthemum plants and compared with water as the controls. The results showed that the application of insecticidal plants extracts reduced attack intensity and incidence from water treatment (control). Certain treatment combinations, Chinese mahogany leaf extract at the concentration of 0.25%, C. pyrethrum petal 0.15 and 0.30%, and chinaberry leaf at 0.3, 0.35% even had 0.9-3.13% lesser attack incidences than commercial botanical insecticide Neem Plus. The respected treatments also supressed more than 62% leaf miner attacks and induced the increase of marketable flowers.

Breeding Biology of Two Coexisting Laughingthrush Species in Central China

“…So plant based products are suitable and safe for controlling insect pest on som plants. Rahardjo et al (2020) reported that the application of plant extract that has an insecticidal effect is considered as one promising alternative in reducing the negative effects of synthetic pesticides. They also reported that the respected treatments of Chinese mahogany leaf extract, pyrethrum petal, chinaberry leaf and commercial botanical insecticide Neem Plus also O n l i n e…”

Efektivitas Produk Simplisia Pestisida Nabati Terhadap Pertumbuhan Tanaman Pakcoy (Brassica rapa L.)

“…Daun tanaman pakcoy yang terjaga dari serangan hama, karena pemberian perlakuan yang tepat akan menunjukkan pembelahan dan pembesaran sel yang terjadi pada tanaman dan kebutuhan hara terpenuhi melalui penyerapan hara oleh perakaran (Ibnusina & Tasnia, 2022). Serta pada penelitian sebelumnya menunjukkan bahwa penerapan ekstrak tanaman atau insektisida nabati yang tepat dapat mengurangi intensitas serangan dan kejadian serta dapat menekan lebih dari 62% serangan penambang daun dan menyebabkan peningkatan produktivitas bunga pada tanaman krisan (Rahardjo, Marwoto, & Budiarto, 2020).…”

Bio-efficacy of Plants based Formulations for the Management of Cowpea Aphid (Aphis craccivora Koch.)

“…So imidacloprid as small amount may be recommended mixing with plant based insecticides for general use of aphid control in cowpea for its higher efficacy and rapid degradation. Rahardjo et al (2020) reported that the application of plant extract that has an insecticidal effect is considered as one promising alternative in reducing the negative effects of synthetic pesticides.…”