Relative Biochemical Basis of Susceptibility in Commercial Wheat Varieties against Angoumois Grain Moth, Sitotroga cerealella (Olivier) and Construction of its Life Table

Abstract

A study was conducted to evaluate the relative biochemical basis of susceptibility of six commercial wheat varieties grown in Khyber Pakhtunkhwa, Pakistan, against angoumois grain moth, Sitotroga cerealella (Olivier) (Lepidoptera: Gelechiidae) and construction of its life .4), and the intrinsic rate of increase was also higher on Pirsabak-2005 (30.7) than Sirin (15.9). With respect to doubling time being index of resistance, this time in Pirsabak-2005 was almost half (0.01 days) of the Sirin (0.02 days), which means that S. cerealella can develop more quickly on Pirsabak-2005 germplasm. In summation, relatively least susceptible wheat variety Sirin can be used to increase the level and diversify the basis of resistance to S. cerealella in the resistance breeding programs.

Life table study of Sitotroga cerealella on different cereals and its implications on the performance of the egg parasitoid (Trichogramma chilonis) under laboratory conditions

“…Our findings on total developmental time of immature stages (33.26 days) are in complete conformity with the study of Murad and Batool, who recorded that the total developmental time of immature stages of S. cerealella on barley was 32.1 days 32 . Our results agree with the work of Akter et al, who reported the lifetable parameters of S. cerealella on different barley varieties and reported the incubation period (7.00 ± 0.00), larval period (36.80 ± 0.38), pupal period (9.48 ± 0.17) and adult longevity of both male and female (6.32 ± 0.13 and 6.74 ± 0.26) days respectively 33 .…”

“…A research study conducted by Akter et al, on the lifetables of T. chilonis feeding on S. cerealella reported that T. chilonis parasitism ranged from 61 to 95%, with adult emergence 51 to 96.30%. They further reported adult longevity ranged from 4.2 to 7.4 days 33 . Current findings are further on par with the work of Nadeem et al, who recorded the greatest adult's emergence (98%) of T. chilonis from host eggs 36 .…”

“…Our results further showed that the oviposition days of S. cerealella on barley was (4.909 ± 0. 33 .…”

Influence of rice grain traits to their susceptibility to the lesser grain borer, Rhyzopertha dominica (F.) (Coleoptera, Bostrichidae)

“…The results of the present experiments are in line with that of Kumar et al (2020) who observed that developmental features of R. dominica had a significant positive correlation with ash, carbohydrate, and fat contents whereas significant negative association of surface wax, total phenol, Influence of rice grain traits on susceptibility to the lesser grain borer, Rhyzopertha dominica (F.) Murad and Batool (2017) who reported that high protein content varieties were highly susceptible to Sitotroga cerealella and Sitophilus oryzae (Soujanya et al, 2017).…”

Effect of Bio-Chemical Properties of Various Grains on the Quality Rearing of Factious Host, Sitotroga cerealella (Olivier) and its Subsequent Effect on Trichogramma chilonis in Vitro

“…This study investigated the host preference and development of Sitotroga cerealella on different cereals and their detailed effect on the quality of T. chilonis under laboratory conditions. Studies on different parameters have already been conducted in comparing the effects of different cereal types and even their different strains and on finding emergence, development time and fecundity of S. cerealella (Rizwana et al, 2011;Hamed and Nadeem, 2012;Borzoui et al, 2017;Safian Murad and Batool, 2017) that are attributed to varying nutritional values as well as physical and chemical nature of cereals (Khan et al, 2010;Mahmoud et al, 2020). While rearing S. cerealella on wheat as compared to maize and other cereal grains in present study, larger numbers of eggs were obtained and this is consistent with findings by Mahmoud et al (2020).…”