Seed treatment affects Meloidogyne incognita penetration, colonization and reproduction on cotton

Ciência Rural

Rosana Bessi¹  Fernando Ribeiro Sujimoto¹  Mário Massayuki Inomoto¹ 

[1] ,Escola Superior de Agricultura Luiz de Queiroz Departamento de Fitopatologia e Nematologia Piracicaba SP ,Brasil

关键词: abamectin;    Gossypium hirsutum;    knot-root nematode;    nematicide;    abamectina;    Gossypium hirsutum;    nematoide das galhas;    nematicida;   

DOI  :  10.1590/S0103-84782010000600030

来源: SciELO

【 摘 要 】

The effect of abamectin, applied as seed treatment, on Meloidogyne incognita penetration, colonization, and reproduction on cotton was evaluated in two greenhouse experiments. Second stage juveniles (J2) penetration was evaluated 3, 9 and 15 days after germination (dag), whereas the nematode colonization was evaluated 27dag, by counting the total number of galls and egg masses per root system. Eggs and J2 were extracted from the roots to assess the nematode reproduction at 50 and 100dag. The seed treatment caused a decrease in J2 penetration in the roots, resulting in lower colonization and reproduction of M. incognita. These findings are discussed considering the environmental aspects of abamectin in the soil and the current practices for the crop management.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License