The role of allelopathy in agricultural pest management

Muhammad Farooq*, Khawar Jabran, Zahid A. Cheema, Abdul Wahid, Kadambot Hm Siddique

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

291 Citations (Scopus)

Abstract

Allelopathy is a naturally occurring ecological phenomenon of interference among organisms that may be employed for managing weeds, insect pests and diseases in field crops. In field crops, allelopathy can be used following rotation, using cover crops, mulching and plant extracts for natural pest management. Application of allelopathic plant extracts can effectively control weeds and insect pests. However, mixtures of allelopathic water extracts are more effective than the application of single-plant extract in this regard. Combined application of allelopathic extract and reduced herbicide dose (up to half the standard dose) give as much weed control as the standard herbicide dose in several field crops. Lower doses of herbicides may help to reduce the development of herbicide resistance in weed ecotypes. Allelopathy thus offers an attractive environmentally friendly alternative to pesticides in agricultural pest management. In this review, application of allelopathy for natural pest management, particularly in small-farm intensive agricultural systems, is discussed.

Original languageEnglish
Pages (from-to)493-506
Number of pages14
JournalPest Management Science
Volume67
Issue number5
DOIs
Publication statusPublished - May 2011
Externally publishedYes

Keywords

  • Allelochemicals
  • Cover crops
  • Crop rotation
  • Diseases
  • Environment
  • Insect pests
  • Mulching
  • Weeds

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Insect Science

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