2025, Vol. 6, Issue 1, Part A
Factors affecting aphids infestation to certain wheat entries
Author(s): Ahmed AA Abdel Aziz and EA El Sarand
Abstract: Wheat, Triticum aestivum L. is a vital cereal crop in Egypt and allover the world. This crop is subjects to infestation by several insect pests, cereal aphids are major biotic constraints of crop production. Experiments were conducted at the experimental farm of Sakha Agricultural Research Station during 2021/2022 and 2022/2023 wheat seasons. The objectives were to determine the susceptibility of wheat entries to infestations by several aphid species. Also, the aphid infestation levels were correlated with weather factors prevailing in the location. Four aphid species were found attacking wheat plantations. These aphid species are: Rhopalosiphum padi L., Rhopalosiphum maids (Fitch), Schizaphis gramium (Rondani) and Sitobion avenae (Fabricius). R. padi was the most dominant species, followed by Sitobion avenae, S. graminam and R. maids. As for the entries susceptibility to aphids, the highest susceptible entries were Misr-1, Sakha-94, Gemmeiza-12, Shandaweel-1 and Sids12. The highest resistant genotypes were Giza-168, Sakha-95, Sids-14, and Sakha-1001. Sowing wheat dates significantly affected the degree of aphid infestation. In the first season (2021/2022), the wheat sown on November 5th suffered the highest aphid infestation (15.46±0.10) nymphs and adults/10 tillers, followed by that sown on December 5th (13.93±1.17), and by that sown on January 4th (13.73±0.73), while wheat sown on February 3th had the lost infestation (7.70±0.41 nymphs and adults/10 tillers). In the second season (2022/2023), the trend of infestation, due to sowing date, was relatively different. The highest infestation (5.31±0.32) was recorded in wheat sown later (February 3rd), followed by that sown-on January 4th (4.07±0.46), December 5th (3.24±0.47), and then the earliest sown wheat (November 5th), with 2.01±0.24 nymphs and adults/10 tillers. The results of the current study could be included in IPM program on wheat fields.
DOI: 10.33545/27080013.2025.v6.i1a.187
Pages: 30-35 | Views: 44 | Downloads:
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How to cite this article:
Ahmed AA Abdel Aziz, EA El Sarand. Factors affecting aphids infestation to certain wheat entries. Acta Entomol Zool 2025;6(1):30-35. DOI: 10.33545/27080013.2025.v6.i1a.187