Subscribe Now Subscribe Today
Science Alert
 
Blue
   
Curve Top
Journal of Applied Sciences
  Year: 2002 | Volume: 2 | Issue: 3 | Page No.: 300-303
DOI: 10.3923/jas.2002.300.303
 
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail

Population Abundance of Predators in Alfalfa and Cotton Fields at Tando jam

Rab Kino Khuhro , Imtiaz A. Nizamani and Muzafar A. Talpur

Abstract:
The studies on population abundance of predators in alfalfa and cotton fields were carried out at the experimental field of Integrated Pest Management (IPM), Agriculture Research institutes (ARI) Tandojam, during June to September 2000. Twelve predators were recorded Campylomma nicolasi, Brumus suturalis, Staphylinid hutchinsoni, Paederus fuscipes, Coccinella undecimpunctata, Orius laerigatus, Chrysoperia carnea, Geocoris tricolor, Formicomus antiqumus, Laius malleifer, Delta sp., and Spider (un-identified). The predators populations recorded on alfalfa through sweep net method showed that the maximum population of Orius laevigatus (1170) was recorded throughout the season followed by Campylomma nicolasi (979), Spiders(318), Laius malleifer (123), Formicomus antiqumus (60), Paederus fuscipes (53), Geocoris tricolor (51), Staphylinid hutchinsoni (47), Coccinella undecimpunctata (36), Chrysoperia carnea (34) and Brumus suturalis, Delta sp., (9) respectively. The maximum population of predators (2889) was recorded through sweep net method on alfalfa followed by (891) direct count method on alfalfa and through sweep net method on cotton (476) respectively. The better suitability sweep net method for sampling population of predators on alfalfa than direct count method on alfalfa and cotton. The population of predators was more on alfalfa than cotton. The availability of biotic agent predators are large in number in the alfalfa field indicates that, alfalfa harbours sufficient number of pest hosts as food for predators. Since, the alfalfa is a perennial crop and good source of biocontrol agents; therefore, it can be grown in strips near major field crops and can be exploited for the control of pests through predators.
PDF References Citation Report Citation
 RELATED ARTICLES:
  •    Survey of Entomophagous Insects in Cotton Belt of Punjab, Pakistan
How to cite this article:

Rab Kino Khuhro , Imtiaz A. Nizamani and Muzafar A. Talpur , 2002. Population Abundance of Predators in Alfalfa and Cotton Fields at Tando jam. Journal of Applied Sciences, 2: 300-303.

DOI: 10.3923/jas.2002.300.303

URL: https://scialert.net/abstract/?doi=jas.2002.300.303

COMMENT ON THIS PAPER
 
 
 

 

 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 

Curve Bottom