Phytoparasitica (2001) 29, p. S9 (Ferizli et al.)

A. Güray Ferizli, S. Navarro, J.E. Donahaye, Miriam Rindner and A. Azrieli (2001)
Airtight granary for use by subsistence farmers
Phytoparasitica 29 (Suppl.), S9-S9
International Conference on Controlled Atmosphere and Fumigation in Stored Products (Session 1), October 29-November 3, 2000, Fresno, California, USA
Abstract: An airtight flexible plastic granary of 600 kg nominal capacity was tested for on-farm storage of grain. The granary was designed to provide food security for rural communities. It has the advantage of sealed storage that obviates the need to employ residual insecticides and fumigants. To test the efficacy of the granary, it was artificially infested with adults of the rice weevil Sitophilus oryzae (L.), of the lesser grain borer Rhyzopertha dominica (F.) and of the red flour beetle Tribolium castaneum (Herbst), (six insects/kg for each species) from laboratory cultures to maize at average moisture content of 12.6%. Insect survival, gas composition, and temperature of the maize were measured. Maize temperatures were within the range of 34° to 23° C. O₂ concentrations dropped to 0.2% within 13 days and CO₂ rose to 12%. For the following 50 days, O₂ and CO₂ concentrations remained stable. A moist pocket of maize at the top of the granary was found to have a moisture content of 14.6%, which contributed to maintaining this atmosphere. In spite of favorable temperatures for the development of insects, at the end of 2 months' storage the initial insect populations of S. oryzae, R. dominica and T. castaneum were successfully controlled without the use of pesticides.
Database assignments for author(s): Ahmet G Ferizli

Research topic(s) for pests/diseases/weeds:
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Tribolium castaneum	Stored grain	Turkey
	Sitophilus oryzae	Stored grain	Turkey
	Rhyzopertha dominica	Stored grain	Turkey