Biology of Armyworm, Spodoptera litura and Effect of Beauveria bassiana against Third Instar Larvae Under Laboratory

Afzal, Zohaib; Abdul Wahab, Ahmad; Arshad, Muhammad Arslan; Bin Tayyab, Usama; Yousuf, Muhammad Usman; Ahmad, Haseeb; Khan, Muhammad Dilawaiz; Zubair Khan, Muhammad

doi:10.21608/eajbsa.2021.206450

Biology of Armyworm, Spodoptera litura and Effect of Beauveria bassiana against Third Instar Larvae Under Laboratory

Document Type : Original Article

Authors

¹ Department of Soil Science, MNS-University of Agriculture, Multan, Pakistan

² Department of Agronomy Bahauddnin zikriya university multan

³ Department of Entomology, University of Agriculture Faisalabad, Pakistan

⁴ Department of Horticulture, Gomal University Dera Ismail Khan, Pakistan

⁵ Department of Agronomy, University of Agriculture Faisalabad, Pakistan

⁶ Department of soil science University of agriculture dera ismail khan

10.21608/eajbsa.2021.206450

Abstract

Armyworm, Spodoptera litura is a destructive and polyphagous pest of several crops i.e. agricultural and horticultural throughout the world. The present research was performed to check the biology and efficacy of Beauveria bassiana on larvae and pupae of pests. Eggs were laid on the lower surface of cabbage leaves and on the wall of the containers in cluster form. The colour of newly laid eggs was pale white, later changed to grey or dark near to hatching. The average developmental parameters of 1^st, 2^nd, 3^rd, 4^th and 5^th larval instar were 2.43±0.43, 2.65±0.80, 3.21±0.54, 2.43±0.56 and 2.33±0.86, respectively. The colour of pre-pupa and pupa was lighter reddish and pale yellowish, respectively. The average mean pre-pupal and pupal periods were0.63±0.21 and 7.00±0.76, respectively. The larval length was 2.6, 2.5 and 2.8 cm in 2.4x10⁴, 2.4x10⁵and 2.4x10⁶ spore/ml, respectively. The highest and lowest pupation percentage was 87.2% and 40.6%, respectively in 2.4x10⁴spore/ml andcontrol. The pupal weight was 181.2 and 202.3 mg in 2.4x10⁵ and 2.4x10⁶spore/ml, respectively. The pupal duration was 8.3, 8.1, and 8.4 days in 2.4×10⁴, 2.4×10⁵, and 2.4×10⁶ spore/ml, respectively. The current study will be proved the best strategy in integrated pest management strategy (IPM) in the country

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