Life table study of Sitotroga cerealella on different cereals and its implications on the performance of the egg parasitoid (Trichogramma chilonis) under laboratory conditions
Küçük Resim Yok
Tarih
2023
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Nature Portfolio
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Sitotroga cerealella is one of the major pests of cereals in the field and storage conditions throughout the world. The main objective was to study the life tables of S. cerealella on wheat, maize and barley and its implications on percent parasitism of Trichogramma chilonis. S. cerealella is reared under lab conditions as its eggs are utilized for rearing T. chilonis. Fresh eggs of S. cerealella were collected and after hatching the neonate larvae of S. cerealella were transferred onto each host plant species for obtaining first (F1) generation (G). Seventy eggs were used for each host and each egg was used as a replicate. Daily observations were made for recording the life-table parameters of the S. cerealella. The data showed that the developmental time of S. cerealella eggs and pupae was maximum (5.68 and 7.75 days) when reared on wheat, while the maximum larval duration (19.77 days) of S. cerealella was recorded on barley. The maximum fecundity (290.30 & PLUSMN; 22.47 eggs/female) was recorded on maize, while minimum fecundity per female was recorded on barley (159.30 eggs/ female). The S. cerealella reared on maize had significantly higher values of finite rate of increase (& lambda;), intrinsic rate of increase (r), and net reproductive rate (R-o) (0.14 & PLUSMN; 0.04 day(- 1), 1.16 & PLUSMN; 0.05 day(- 1), and 136.85 & PLUSMN; 20.25 eggs/ female) respectively. The mean generation time (T) (35.18 & PLUSMN; 0.61 days) was higher on wheat. Likewise, the gross reproductive rate (GRR) and the age-stage specific reproductive values (v(xj)) of newly oviposited eggs of S. cerealella were recorded higher (136.85 & PLUSMN; 20.25; 1.160 offspring) on maize. The data regarding the efficacy of T. chilonis for different parameters were recorded higher on maize i.e., percent parasitism (89.00 & PLUSMN; 2.30%), percent adult emergence (81.60 & PLUSMN; 1.20%), adult longevity (3.80 & PLUSMN; 0.10 days) and total adult longevity (9.90 & PLUSMN; 0.20 days) as compared to wheat and barley. Our findings revealed that S. cerealella can be best reared on maize under laboratory conditions as it prefers this host as compared to wheat and barley. Therefore, assigning the most susceptible and favorite host (maize) would help us to improve T. chilonis mass production under laboratory conditions.
Açıklama
Anahtar Kelimeler
Angoumois Grain Moth, Ishii Hymenoptera, Sex-Ratios, Lepidoptera, Olivier, Host, Varieties, History, Wheat, Resistance
Kaynak
Scientific Reports
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
13
Sayı
1
