scholarly journals The effect of Planting distance and insecticide on spiny bollworm Earias insulana (Lepidoptera: Phalaenidae) in cotton, Gossypium hirsutum Variety Lachata

2021 ◽  
Vol 735 (1) ◽  
pp. 012083
Author(s):  
Fadel Abbas Qader ◽  
Najdat Ghazi Saber
Keyword(s):  
Gossypium Hirsutum ◽  
Earias Insulana ◽  
Spiny Bollworm ◽  
Planting Distance

The effect of gossypol on the larvae of the spiny bollworm, Earias insulana

1977 ◽  
Vol 22 (3) ◽  
pp. 301-303 ◽  
Author(s):  
J. Meisner ◽  
M. Kehat ◽  
M. Zur ◽  
K. R. S. Ascher
Keyword(s):  
Earias Insulana ◽  
Spiny Bollworm

scholarly journals Effect of Bacillus safensis NBRC 100820 isolated from cotton plant against the spiny bollworm, Earias insulana (Boisduval)

2021 ◽  
Vol 31 (1) ◽  
Author(s):  
Ali Ahmed El-Sayed ◽  
Mohammed Farouk Ghaly ◽  
Ahmed Adel Amer
Keyword(s):  
Toxic Effect ◽  
Cotton Plant ◽  
Biological Effects ◽  
Larval Mortality ◽  
Adult Emergence ◽  
Field Studies ◽  
Pupal Weight ◽  
Earias Insulana ◽  
Bacillus Safensis ◽  
Spiny Bollworm

Abstract Background Toxic effect of some local bacterial isolates, isolated from the Egyptian cotton plant (Gossypium barbadance L.), on larvae of the spiny bollworm (SBW), Earias insulana (Boisduval) (Lepidoptera: Nolidae) was studied as well as the biological effects of the most toxic isolate. Results Bacillus safensis NBRC 100820 had the most toxic effect on the SBW larvae compared to other isolates. Larval mortality percentages were 100, 90, 50, 50 and 30% for newly hatched, 3, 5, 7 and 10-day’s old larvae, respectively, after 2 days from treatment. Moreover, B. safensis NBRC 100820 caused latent effects on different stages of SBW. It decreased the larval and pupal weight, percentages of adult emergence and hatchability as well as number of deposited eggs/female more than the control. Using 16s rRNA confirmed the identification of B. safensis NBRC 100820 and its accession number is MW281809. Conclusions Use of B. safensis NBRC 100820 can be recommended for biological control of E. insulana. Further field studies are needed.

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