Annual Review of Entomology (1978) 23, 39-67

A. Bellotti and A. van Schoonhoven (1978)
Mite and insect pests of cassava
Annual Review of Entomology 23, 39-67
Abstract: Numerous species of grasshoppers are reported to attack cassava (Manihot esculenta), principally in Africa. Here the main economic species are Zonocerus elegans and Z. variegatus, which are widespread between 10° north and south of the equator. Crop losses up to 60% have been reported, and these species may be disseminators of cassava bacterial blight. Damage is most severe during the dry season, and complete defoliation and also bark stripping can occur. Eggs are laid in April, hatching occurs about eight months later, and the larval stage lasts about two months. Z. variegatus is a mass migrator, and Z. elegans migrates individually. Chlorinated hydrocarbons are recommended for control. Grasshoppers have been observed feeding on cassava in the Americas, but are not considered to be a major pest. Crickets may attack cassava in some parts of the world.
(The abstract is excluded from the Creative Commons licence and has been copied from Acridological Abstracts with permission by NRI, Univ. of Greenwich at Medway.)
Link to article at publishers website
Database assignments for author(s): Anthony C. Bellotti

Research topic(s) for pests/diseases/weeds:
review

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Zonocerus variegatus	Cassava (Manihot esculenta)
	Zonocerus elegans	Cassava (Manihot esculenta)