Resistance of Different Stored Wheat Varieties to Khapra Beetle, Trogoderma granarium (Everest) and Lesser Grain Borer, Rhizopertha dominica (Fabricus)

Performance Analysis and Quality Evaluation of Wheat Storage in Horizontal Silo Bags

“…Analysis of variance indicated no significant differences for storage period, sampling location, and interaction between them ( p > 0.05) on 1000-grain weight by two-way ANOVA. These results are in agreement with [ 32 ] who stated that moisture content played a significant role in weight loss of grains.…”

“…In comparison with [ 20 ], carbon dioxide remained above 12% for stored wheat (12-13 w.b) after six months, while it reached 4.6% in [ 26 ] with a difference of 3% between the summer and winter months. Therefore, it should be noted that the difference in carbon dioxide percentages inside the silos depends on the respiration rate of grains and the level of microorganisms inside the silos in addition to permeability of the plastic film and its ability to maintain the appropriate gaseous balance for the storage process [ 16 , 32 , 33 ].…”

Khapra beetle (Trogoderma granarium Everts, 1898) in durum wheat (Triticum durum Desf): Impacts on some seed characteristics and marketing price

“…Khattak et al (2000) studied on the effect of khapra beetle infestation employing twelve wheat lines and also found that correlation between progeny development vs. damage and weight loss was positive and highly significant (P<0.01). Their results matched those of Syed et al (2006), in which they evaluated the losses caused by khapra beetle to various wheat cultivars. Results of Ahmedani et al (2011) revealed that increasing infestation levels resulted in significant increase in progeny development, weight loss and weight of frass, the number of broken and insect damaged grains.…”

Effect of The Different Wheat Grain Varieties on some Biological Aspects of The Khapra Beetle Trogoderma granarium Everts (Dermestidae: Coleoptera) تأثير الأصناف المختلفة لحبوب القمح علي بعض الخصائص البيولوجية لخنفساء الخابرا Trogoderma granarium Everts

“…These results are in agreement with these of Awadalla et al (2005) who mentioned that the best preferable wheat varieties were Sakha 69 followed by Sakha 8 and Sakha 93 to the Khapra beetle, T. granarium. Sayed et al (2006) suggested that Mehran wheat variety had the lowest population and Tj-0787 wheat variety had the highest population of the Khapra beetle, I. granarium. Moreover, Abd El-Razik et al (2016) found that Ben-Swaif 4 and Gamiza 7 wheat varieties were the most susceptible varieties to T. granarium, whereas Gisa 168 was the most tolerant wheat variety to I. granarium.…”

“…Several authors studied the biological aspects and the effect of different ecological factors on this insect pest. For example, Mahmood and Al-Azawi (1987) studied the effect of wheat and air moisture contents on the insect pest, Taheri (1988) studied the effect of various temperature degrees on the different stages, Aldryhim and Adam (1992) studied the biology in the central province of Saudi Arabia, Gharib (2004) evaluated the resistance of some wheat grain varieties to infestation with this insect pest, Awadalla et al (2005) also studied the effect of different wheat varieties on the biological aspects of this insect, Sayed et al (2006) studied the resistance of different stored wheat varieties to infestation by T. granarium and they found that wheat variety Mehran-89 hosted the lowest population, whereas Tj-0787 haboured the highest population of this insect, Abd El-Razik et al (2016) concluded that the Gemiza 7, Ben-swaif 4 and Sohag 3 were the most susceptible wheat varieties, whereas Giza 168 was the most tolerant variety to T. granarium, Athanassiou et al (2016) studied the population growth of T. granarium on different commodities, Marani et al (2017) also studied the effect of maize hybrid on the biology and life table parameters of T. granarium and they mentioned that the hybrid BC678 was unfavorable hybrid for population increase of the insect pest, Golizadeh and Abedi (2017) stated that, T. granarium larvae fed on barley cultivar Makuyi with higher values of relative consumption rates resulting in higher values of relative growth rates, and Mozhgan and Hamzeh (2018) suggested that the larval food quality for T. granarium can affect the biological and physiological characteristics, and the supercooling point and cold hardiness of the insect pest.…”