Kajian keefektifan agen hayati Beuveria bassiana dan penyarungan buah dalam pengendalian hama PBK di Kalimantan Timur

Fiana, Yossita; Nurbani, Nurbani; Danial, Darniaty

doi:10.13057/psnmbi/m010545

Cited by 1 publication

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“…Cocoa, a highly competitive commodity in Indonesia, has the main problem in its cultivation: the attack of plant-pest insects. Cocoa pod borer (CPB), Conopomorpha cramerella, is the primary agent that damages the cocoa industry and causes yield loss in cocoa production (Fiana et al, 2015;Rahmawati et al, 2017). Attacks by CPB have the potential to harm beans by up to 82% and limit production by up to 80%, so cocoa farmers and business owners are quite concerned about dealing with this issue.…”

Section: Introductionmentioning

confidence: 99%

The effect of chitin on the effectiveness of Beauveria bassiana formulation product to control cocoa pod borer in vitro

Nurhangga,

Nawfetrias,

Djamas

et al. 2024

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Fungal entomopathogens are suggested to be used as a bioinsecticide due to their biological persistence and ecological friendliness. Beauveria bassiana is an entomopathogenic fungus that can effectively control insect pests, including cocoa pod borer. This study aims to determine the level of effectivity of the B. bassiana (Bb) formulation product from Palu against cocoa pod borer pupae in vitro . This research used a completely randomized design (CRD) consisting of two factors: conidia concentrations and chitin treatments, which were repeated thrice. The conidia concentrations consisted of two levels, that were 106 and 107 conidia/mL. The chitin treatment included seven treatments: isolate from Kediri without formulation with chitin (Bb-K), isolate from Palu without formulation with chitin (Bb-P0), four formulations of isolates from Palu with the addition of chitin to various growth media (Bb-P1, Bb-P2, Bb-P3, and Bb-P4), and control (without Bb suspension). Bb-P0 and Bb-P2 treatments at a concentration of 107conidia/mL began to colonize CPB on the third day after the treatment application, while the other formulations started on the fifth day. However, Bb-P0 showed the lowest infection rate at the end of the observation. Contrarily, the data on the pupa-infected ratio showed that the Bb-P2 treatment was the highest compared to other treatments. It conformed to the adult emergence ratio that Bb-P2 exhibited the lowest, which means Bb-P2 has the most virulence of other formula. The result showed that PDA and PDB media-supplemented chitin was the most effective for culturing B. bassiana origin Palu before mass production.

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Section: Introductionmentioning

confidence: 99%