Combined Impacts of Two Type's Cold Storage and Microwave Radiation on Stored Products Insects and Wheat Seed Viability

Document Type : Original Article

Authors

1,2 Department of Plant Protection, Agricultural Faculty, Urmia University, Urmia, IRAN

Abstract

Microwave radiation in conjecture with two types of cold storage were used to
control adults of red flour beetle, Tribolium castaneum (Herbst) (Coleoptera:
Tenebrionidae) and lesser grain borer, Rhyzopertha dominica (F.) (Coleoptera:
Bostrichidae). The mortality rate of the insects at 200 W microwave power level,
different exposure times (0, 2, 4, 6 and 8 min), for 48 h pre and post cold storage
period was determined. A direct relationship between mortality rates and exposure
times was detected. Susceptibility of the insects in implementation radiation priori or
post cold storage execution was significantly different. Apparently, when the insects
were exposed to microwave radiation prior to cold storage, the mortality rates were
increased. In comparison, the adults of wheat flour beetle were more tolerant than the
corresponding adults of the lesser grain borer. Wheat germination rate was diminished
by post cold storage microwave radiation procedure. The plumule length did not
reduce after exposure to microwave energy and cold storage. Together, data suggest
concurrent application of microwave radiation followed by cold storage could be a
potential measure for control wheat stored-product beetles.

Keywords

Egyptian Academic Journal of Biological Sciences. A, Entomology
Volume 5, Issue 2
August 2012
Pages 121-129

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