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Journal : Gontor AGROTECH Science Journal

EFFECT OF STARVATION AND INFESTATION BEHAVIOR OF LARVAE KHAPRA BEETLE, Trogoderma granarium Everts (COLEOPTERA : DERMESTIDAE) Haris Setyaningrum
Gontor AGROTECH Science Journal Vol 2, No 1 (2015): December 2015
Publisher : University of Darussalam Gontor, Ponorogo, East Java Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21111/agrotech.v2i1.297

Abstract

The Khapra beetle Trogoderma granarium Everts is very destructive pest in various stored product and nominated as one of the hundred worst invasive species in the world. The study of starvation and infestation behaviors are important for improvement of insect control method. This study represent the number of molting as fact of regressive molting in starved condition, the larva of T. granarium within 68 days periods can be molted 1-3 times. The infestation behavior on three diets treatment presented. In grain wheat their larva are laid off the casting skin over the surface of product and distributed randomly in whole part of stored product. Respectively in flour casting skin are laid down in bottom of the container as effect of feeding. In flour the casting skin are laid on mostly over surface of the flour mixed with frass. In toilet tissue the infestation is present in hole over the surface and randomly position of casting skin.
A Survey of Phytopathogenic Fungi and Oomycetes in Riyadh, Saudi Arabia Arya Widyawan; Boy Valenza Damiri; Adyatma Irawan Santosa; Haris Setyaningrum
Gontor AGROTECH Science Journal Vol 1, No 2 (2015): Juni 2015
Publisher : University of Darussalam Gontor, Ponorogo, East Java Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21111/agrotech.v1i2.261

Abstract

A survey of phytopathogenic fungi and Oomyceteswas conducted in Riyadh, Kingdom of Saudi Arabia duringOctober 2008 – May 2009. Total of 223 samples were collectedfrom four regions; Al-Kharj, Oyaynah, Old Diriyah, and Al Amariyah. Isolation was done using Potato Dextrose Agar(PDA). Infected parts were cut then sterilized in chlorox(10%), then were put in petridish that contain PDA andincubated at 25-27 °C. A total twelve genera of fungi andsingle genera of Oomycetes were isolated from the infectedplants and identifi ed as Fusarium spp., Alternaria spp.,Helmintosphorium (Bipolaris) spp., Sclerotium spp., Rhizoctoniaspp., Cladosporium spp., Mauginiella scattae, Erysiphe spp.,Leveillula spp., Macrophomina phaseolina, Ustilago spp.,Ulocladium spp., and Phytium spp.