sg

Biology

No. 3 (2024): FarDU.Ilmiy xabarlar jurnali. Ilova to'plam (Aniq va tabiiy fanlar)

THE INFLUENCE OF SOIL MOISTURE ON THE DEVELOPMENT OF TURNIP MOTH (AGROTIS SEGETUM (DENIS & SCHIFFERMÜLLER) 1775) LARVAE

Submitted
August 26, 2024
Published
2024-09-12

Abstract

Experiments to study the choice of shelters for A. segetum caterpillars of the 1st and 2nd instars were carried out on sorrel (Rumex acetosa L) grown in pots with dry and moist sandy soil. The majority of turnip moth caterpillars were found on plant leaves in wet soil experiments and in dry soil in dry soil experiments. Larval mortality was found to be high in wet soil experiments and low in dry soil. The research results make it possible to assess the development of the fall armyworm and its distribution across regions.

References

  1. Bowden, J., J. Cochrane, B. J. Emmett, T. E. Minall & P. L. Sherlock, 1983. A survey of cutworm attacks in England and Wales, and a descriptive population model for Agrotis segetum (Lepidoptera: Noctuidae). Ann. Appl. Biol. 102: 29-47.
  2. Esbjerg, P., J. K. Nielsen, H. Philipsen, O. Zethner & L. Ogard, 1986. Soil moisture as mortality factor for cutworms (Agrotts segetum Schiff., Lep. Noctuidae). J. Appl. Ent. 102: 277-285.
  3. Esbjerg, P., 1988. Behaviour of lst- and 2nd-instar cutworms (Agrotis segetum) (Lep., Noctuidae): The influence of soil moisture. J. Appl. Ent. 105: 295-302.
  4. Mikkelsen, S. & P. Esbjerg, 1981. The influence of climatic factors on cutworm (Agrotis segetum) attack level, investigations by means of linear regression models. Tidsskr. Planteavl 85: 291-301.
  5. Zokirov I.I. Markaziy Farg‘onaning sabzavot-poliz ekinlari hasharotlari faunasi va ekologiyasi: Biol. fan. dokt. (DSc) ...diss. avtoref. – Toshkent, 2019. - 59 b.
  6. Yoqubov A.A., Mahmudov M.U. Kuzgi tunlam (Agrotis segetum Denis&Schiff) ning biologik xususiyatlari haqida// “Ilm-zakovatimiz – senga, ona-Vatan!” mavzusidagi Respublika onlayn ilmiy-amaliy anjuman materiallari, -Fargʻona, 2022. 81- 82b.