The Effectiveness of Suspension Beta Asarone Mixed with Sillica Nanoparticles in the Mortality of Crocidolomia pavonana

Abstract

The prospect of using botanical insecticides to control the insect pests is very promising. However, there are some factors limiting their efficacy. Short release rate at the point contact, the inherent volatility and vulnerability to oxidation and ultra-violet light are causing phytochemical changes during the application. The use of nanoparticles is a novel technology with their potency to maximize the efficacy of phytochemicals. One of the promising plants contained insecticidal compound is Acorus calamus. The main compound of A. calamus, α and β-asarone with the latest is predominantly. The improvement of β-asarone on silica nanoparticle was evaluated against the cabbage heart worm (Crocidolomia pavonana). The bioactivity of the nanoformulation was identified by the larvae mortality using immersion methods. Several findings have been achieved. In term of findings, it showed that β-asarone formulated in silica nanoparticles can increase their efficacy. The formulation reduced the insect development and reduced the number of survived insects. The synergistic effect found on the formulation. This can be determined from the increasing of the number of death larvae and pupae.

The efficacy of Acorus calamus L. crude extract formulated in bentonite nanoparticles against Crocidolomia pavonana (Lepidoptera:Pyralidae)

“…The obtained extract, then concentrated using rotary vacuum evaporator (BUCHI, Japan) at 40-60°C. The concentrated semisolid extracts will be stored in refrigerator at 2-8°C untill further use (Purwatiningsih, 2013). Antifeedant effect from the extracts have resulted the perception of deterrent by insect gustatory receptor in the mouthpart and defensive behavior to respond the toxic substances (Schmutterer, 1990).…”

“…The prospect of using botanical insecticides to control the insect pests is very promising. One of the plant showed the potential insecticidal properties is A. calamus L. (Purwatiningsih et al, 2023;Purwatiningsih et al, 2012). However, there are some factors limiting their efficacy.…”