Effects of Radio-Frequency Electric Field on Stored-Product Insects
Application of Electromagnetic Waves for Control of StoredProduct Insects Part II
1989 Volume 36 Issue 4 Pages 274-278
Details
1989 Volume 36 Issue 4 Pages 274-278
Effects of the radio-frequency (RF) electric field (13.56MHz) on stored-product insects at several stages, Sitophilus zeamais (Sz), Stophilus oryzae (So), Rhyzopertha domi nica (Rd) and Plodia interpunctella (Pi) in husked rice, Oryzaephilus surinamensis (Os)in wheat and Tribolium castaneum (Tc)in wheat nour, were studied. Adults of Sz and adults, pu pae and larvae of Tc were completely killed by the irradiation for 60-80s, when the tem perature of the rice was as low as below 40°C. The adults of Sz were most susceptible to RF followed by adults, pupae and mature larvae of Tc, Pi mature larva, Os adult, So adult, S z mature of RF had little effect for increasing the mortalities of Rd adult. The shapes o f exposure time-mortality lines suggested an unknown action of RF on the insects other than the dielectric heating. A feasibility of RF application for pest insect control in f ood processing factories was discussed.
