[en] The potato tubers subjected to irradiation in autumn were found dry and soft rotting more numerous than non-irradiated ones for the whole period of storage and especially in April and May. The above mentioned phenomenon brought about a little quicker elimination of tubers naturally infected by pectinolytic bacteria. Susceptibility of both kinds of tubers was similar to Fusarium sulphureum introduced under a cover tissue. The irradiation of potato tubers in autumn 1986 led to the appearance of some hard tubers with brown ring spots in spring 1987

[en] Subsequent irradiation treatments (re-irradiation) of the bulb mite with low doses of gamma radiation lower its fecundity and fertility. Population of the bulb mite cumulates the detrimental effects of the repeated irradiation treatments with low doses. As a consequence, the fertility of mites is completely inhibited by the third irradiation treatment with a dose of 50 Gy

[en] Packed dried dates were treated in Iraq with methyl bromide, 0.715 kGy of gamma radiation, or 0.455 kGy of gamma radiation + 75 h at 40 degrees C, and sent by air to Warsaw, Poland for evaluation of disinfestation efficiency of the quarantine treatments. Fumigation with methyl bromide was more effective method of disinfestation than gamma radiation, if induced sterility is not taken into consideration. If the criterion used to determine quarantine security was changed from 100 percent mortality to 'the inability to produce viable offsprings', then the treatments with gamma radiation provide the quarantine security

[en] An irradiator generating electron radiation may be employed for radiation disinfestation of jute bags infested with larvae and adults of the confused flour beetle, Tribolium confusum DuV., if they are created as separate units or small batches, containing up to 40 bags, and are irradiated with a 2 kGy dose. (author)

[en] At doses suggested for radiation disinfestation of agricultural products, the ability of the grain weevil, Sitophilus granarius (L.), and the rice weevil, S. oryzae (L.), to disperse is greatly affected. Their locomotor activity decreases with the increasing dose. (author)

[en] Radiosensivity of the mold mite, Tyrophagus putrescentiae (Shrank), decreases during development. Of immature stages, the inert deutonymph is the most resistant to gamma radiation. Dosage of 26 kGy of gamma radiation is required to prevent full development of immature stages to normal adults. Sterility in the mold mites is achieved following irradiation of adult males and females at a dose of 0.26 kGy could be the treatment required to produce an acceptable level of quarantine security. At this dosage, adult survivors will be present in the treated commodities, but they will not give rise to offspring and thus pest would not be able to perpetuate in a new area

[en] Low dosages of gamma radiation affected the development of immature stages of the bean weevil, Acanthoscelides obtectus Say. Radiosensitivity of the bean weevils decreased during their development, and adults seemed to be the most resistant stage for gamma radiation. There were no significant differences in mortality of immature stages of the pest during their development in beans treated with gamma radiation at dosages up to 1.06 kGy. Moreover, the females showed no ovipositional preference for untreated or irradiated beans

[en] Non-irradiated stored product beetles and their fragments derive a strong natural electron spin resonance (ESR) signal, which is decreased only by 10-15% in insects irradiated with <=1.0 kGy doses of gamma radiation. (author)

[en] Packed dried dates were treated in Iraq with (a) methyl bromide, (b) 0.715 kGy of gamma radiation, or (c) 0.455 kGy of gamma radiation + 75 h at 40 C, and sent by air to Warsaw, Poland, for evaluation of disinfestation efficiency of the quarantine treatments. Fumigation with methyl bromide was more effective method of disinfestation than gamma radiation, if induced sterility is not taken into consideration. If the criterion used to determine quarantine security was changed from 100% mortality to ''the inability to produce viable offspring'' then the treatments with gamma radiation provide the quarantine security. (author)

[en] Subsequent irradiation treatments (re-irradiation) of the bulb mite with low doses of gamma radiation lower its fecundity and fertility. Population of the bulb mite cumulates the detrimental effects of the repeated irradiation treatment with low doses. As a consequence, the fertility of mites is completely inhibited by the third irradiation treatment with a dose of 50 Gy. (author)