@article{Egho:231412,
      recid = {231412},
      author = {Egho, E. O. and Enujeke, E. C.},
      title = {Minimising Insecticide Application in the Control of  Insect Pests of Cowpea (Vigna Unguiculata (L) WALP) in  Delta State, Nigeria},
      journal = {Sustainable Agriculture Research},
      address = {2012},
      number = {526-2016-37761},
      year = {2012},
      abstract = {Many commercial cowpea farmers control insect pests on  cowpea with synthetic chemicals and may sometimes spray  their farms during the growing season as many as 8 to 10  times. This leads to health hazards and environmental  pollution. The present study was conducted to reduce the  number of times, cypermethrin (conventional chemical) is  applied before harvest and still, produce the expected  cowpea grains. The experiments were carried out in two  agro-ecological zones - Asaba and Abraka of Delta State  during the late cropping season. The experiments consisted  of 4 treatments - cowpea plots sprayed 4 times (at 7 days’  intervals), cowpea plots sprayed 5 times (at 10 days’  intervals), cowpea plots whose insect infestation were  monitored before chemical application and control plots  (without chemical treatment). Each treatment was replicated  3 times. The experiments were organised into a randomised  complete block design (RCBD). The results indicated that  cypermethrin controlled the major insect pests of cowpea.   Second, grain yield was high at both locations; significant  differences did not exist (P>0.05) in insect number and  grain yield among the treatments. The study provides the  evidence that (i) high cowpea grain yield is obtained at  reduced number of chemical application of 4 or 5 times  during the growing season (ii) Grain yield was  significantly (P<0.05) higher at Abraka with1400.60kg ha-1  than Asaba (714.40kg ha-1) during the late cropping  season.},
      url = {http://ageconsearch.umn.edu/record/231412},
      doi = {https://doi.org/10.22004/ag.econ.231412},
}