Short communication: The preference and functional response of Sycanus aurantiacus (Hemiptera: Heteroptera: Reduviidae) on three prey types in laboratory conditions

Abstract

Abstract. Yuliadhi KA, Supartha IW, Wijaya IN, Pudjianto, Nurmansyah A, Susila IW, Yudha IKW, Utama IWEK, Wiradana PA. 2021. Short communication: The preference and functional response of Sycanus aurantiacus (Hemiptera: Heteroptera: Reduviidae) on three prey types in laboratory conditions. Biodiversitas 22: 5662-5667. Sycanus aurantiacus Ishikawa et Okajima (Hemiptera: Heteroptera) is a valuable predatory insect that can be cultivated in biological pest control programs, particularly in vegetable crops. The research aimed to investigate the preferences and functional responses of the predator Sycanus aurantiacus to three different prey species in the laboratory conditions, included Plutella xylostella (Linnaeus), Crocidolomia pavonana (Fabricius), and Tenebrio molitor (Linnaeus). The preference experiment was carried out by monitoring the prey on which S. aurantiacus preyed the most. The functional responsiveness of S. aurantiacus was determined by measuring the time it took to detect and prey on various kinds of prey, as well as the number of prey that were successfully preyed upon when the quantity of prey was increased. The predatory S. aurantiacus preferred P. xylostella over C. pavonana and T. molitor. S. aurantiacus functional response to three kinds of prey, including type II, is shown. In P. xylostella, the instantaneous prey search rate (a) was 0.2/hour, with a handling time (Th) of 1 hour 40 minutes/prey, which was quicker than the other two kinds of prey. As a result of our findings, the predator S. aurantiacus can be maintained in the lab and has the potential to be developed as an efficient biocontrol agent, particularly against the cabbage leaf caterpillar P. xylostella.

Evaluation of the Community Structure Leafminer Fly, Liriomyza spp. (Diptera: Agromyzidae) and Their Parasitoids on Various Host Plant Families in Bali Province

“…Differences in community structure and parasitization levels were associated with host density in the field. In general, there will be a correlation between insect pest abundance and their parasitoids (Yuliadhi et al 2021a(Yuliadhi et al , 2021b(Yuliadhi et al , 2022. Host predation by parasitoids may be completed by habitat finding, host existence, host acceptance, and host compatibility (Konopka et al 2018).…”

“…The level of parasitization of the parasitoids was calculated using the equations from the studies of Yuliadhi et al (2021b)…”

Population and attack of bagworm pests in smallholder oil palm plantations in Tenggulun Sub District, Aceh Tamiang District, Aceh

“…So one predator individual can kill more pests than one parasitoid individual. Predators, both female and male, and also in their immature phase can search for and obtain prey [16].…”

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

“…This insects causes damage to plants 10 weeks after planting (Sembiring & Prasetia, 2019). C. pavonana larvae usually attack young plant parts or crops so that they can cause death to cabbage plants (Kumarawati et al, 2013;Yuliadhi et al, 2021). At present to counter this destructive insect pest, synthetic insecticides has been applied.…”