Food Preference of Oryzaephilus Surinamensis (Coleoptera: Silvanidae) to Different Types of Plant Products

Abstract

Oryzaephilus surinamensis is one of the stored product insect that commonly found in Malaysia. The biological study through host range or food preferences of O. surinamensis is important for the development of sustainable management practice to control its infestation. The objective of this study was to identify the food preference of O. surinamensis to different plant products in relation to food type and moisture content. Twenty adult of O. surinamensis were exposed to three different group of food; dried fruits (date, raisin, apricot, fig), grain/cereals (rice, barley, oat grout, dried maize), and nuts (almond, ground nut, walnut, cashew nut) for 240h in laboratory Kulliyyah of Science, IIUM Kuantan. Moisture content in each food was also measured. It was found out that the most preferred food by O. surinamensis is oat groat of cereal grain group with medium level of moisture content. Further analysis on food moisture suggested that under current experimental conditions (temperature of 27℃ and 64% relative humidity within 240h of exposure), food moisture content does not affect pest infestation and distribution.

Influence of Different Stored Grains and Temperature on Developmental Stages and Survival Rates of Oryzaephilus surinamensis (L.) (Coleoptera: Silvanidae)

“…Additionally, temperature influences the nutritional parameters (such as digestive physiology, feeding indices, enzymatic activity, and others) as well as the insect life history by affecting the physical characteristics of living substrates like moisture and starch contents. (Rees, 2004;Sahito et al, 2017;Nurul and Noor, 2019).…”

Influence of Dried Fruits and Nuts on Development and Survival of The Sawtoothed Grain Beetle, Oryzaephilus surinamensis (L.)

“…Moreover, the food dryness affected the movement and the survival of the insect pest larvae and the adults (Latifian et al 2020). Another studier based on the moisture content, the food substrates including dried fruits and fruit nuts were tested for the saw-toothed grain beetle (Babikir 2005 &Nurul andNoor 2019). While, the chemical aspects of the host substrates such as protein, amylose and starch content effected on the adult longevity, mortality and the developmental of the immature stages (Aldosari et al 2002;Chuck-Hernandez et al 2013;Sahito et al 2017;Seifi et al 2016 andKavallieratos et al 2019).…”

Perilaku pemilihan pakan plastik dan respons biologi imago kumbang Tenebrio molitor L. (Coleoptera: Tenebrionidae)

“…Perlakuan pelepasan kumbang dilakukan pada siang hari (pukul 08.00-11.00 WIB) dan malam hari (pukul 20.00-23.00 WIB) masingmasing diulang 2 kali. Pergerakan kumbang diamati dengan menghitung dan mencatat jumlah kumbang yang berkelompok di ruang destinasi sekat pada empat waktu terpilih 75 detik, 1, 2, dan 3 jam setelah pelepasan, dimodifikasi dari Valentine (1931) dan Nurul & Noor (2019).…”

“…Setiap perlakuan diulang 10 kali. Pergerakan kumbang diamati dengan menghitung dan mencatat jumlah kumbang yang berkelompok di ruang destinasi sekat pada enam waktu terpilih 30, 75 detik, 3, 5, 10 menit, dan 24 jam setelah pelepasan dimodifikasi dari Valentine (1931), Suzuki (2011), Reznikova & Dorosheva (2013), dan Nurul & Noor (2019).…”