บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Effect of post-harvest cultural practices on populations of cotton boll weevil Anthonomus grandis Boheman, 1843.

Soares, J. J.; Busoli, A. C.; Yamamoto, P. T.; Sobrinho, R. B.;

Pesquisa Agropecuaria Brasileira Year: 1994 Vol: 29 Issue: 3 Pages: 375-379 Ref: 7 ref.

1994

บทคัดย่อ

Effect of post-harvest cultural practices on populations of cotton boll weevil Anthonomus grandis Boheman, 1843.

ABSTRACT :

 

Research was carried out at Jaboticabal, Sao Paulo, Brazil, in order to verify the effect of cultural harvest practices on populations of Anthonomus grandis in cotton fields. Four Hardee traps baited with pheromones were placed in (1) postharvest cotton fields, (2) cotton fields with mechanical destruction of stalks in late season, (3)treatment 2 plus harrowing of the soil, or (4) treatment 3 plus trap crop with sprays of insecticides. The populations of A. grandis were monitored from 27 April-25 May, 1991. It was concluded that the association of a trap crop plus mechanical destruction of stalks in late season and harrowing resulted in the smallest population of A. grandis. The trap efficiency was influenced by the presence of plants with reproductive structures.