Subscribe Now Subscribe Today
Science Alert
 
FOLLOW US:     Facebook     Twitter
Blue
   
Curve Top
Journal of Applied Sciences
  Year: 2019 | Volume: 19 | Issue: 5 | Page No.: 473-479
DOI: 10.3923/jas.2019.473.479
Effect of Pseudomonas as a Preventive and Curative Control of Tomato Leafminer Tuta absoluta (Lepidoptera: Gelechiidae)
Qessaoui Redouan, Bouharroud Rachid , Amarraque Abderahim, Lahmyed Hind, Ajerrar Abdelhadi, Ait Aabd Naima, Tahiri Abdelghani, Mayad El Hassan and Chebli Bouchra

Abstract:
Background and Objective: Tuta absoluta is a devastating pest of tomato crops. Currently, T. absoluta control is mainly based on chemicals control. However, these products have a harmful impact on environment. This work aims to evaluate the preventive and curative effect of P. fluorescens Q036B, P. fluorescens Q110B and P. putida (Q172B and Q110B) against T. absoluta. Materials and Methods: The three strains were tested directly on mortality of Tuta absoluta adult. Indeed, the effect on larva was done on both sides as a preventive and curative trials. Each bacteria suspension was tested at 108 CFU mL1. The mortality rate was recorded 24-120 h after application. Results: The results indicated that all tested bacterial isolates has a toxic effect on T. absoluta larva and adults. Within the 24-120 h of exposition period, T. absoluta mortality rates up to 81% for adults and to 100% for larva for Q110B and Q036B isolates, respectively. The Q036B isolates induced higher mortality rates than Q172B and Q110B in both preventive and curative control. Regarding the mechanism of action, all isolates produced hydrogen cyanide, siderophores in addition to the exhibited protease and cellulose activities, while only Q036B and Q172B possess chitinase activity. Conclusion: Our results concluding that the P. fluorescens Q110B and P. fluorescens Q036B were a promising candidates bio-agent for biological control of T. absoluta and has potential to be an efficient component in an integrated pest management program. Then the fruits produced will be qualified as safe for consumers and the environment.
PDF Fulltext XML References Citation Report Citation
How to cite this article:

Qessaoui Redouan, Bouharroud Rachid, Amarraque Abderahim, Lahmyed Hind, Ajerrar Abdelhadi, Ait Aabd Naima, Tahiri Abdelghani, Mayad El Hassan and Chebli Bouchra, 2019. Effect of Pseudomonas as a Preventive and Curative Control of Tomato Leafminer Tuta absoluta (Lepidoptera: Gelechiidae). Journal of Applied Sciences, 19: 473-479.

DOI: 10.3923/jas.2019.473.479

URL: https://scialert.net/abstract/?doi=jas.2019.473.479

 
COMMENT ON THIS PAPER
 
 
 

 

 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 

       

       

Curve Bottom