Environmental Entomology (1975) 4, 400-404

A.S. Guido and B.D. Perkins (1975)
Biology and host specificity of Cornops aquaticum (Bruner) (Orthoptera : Acrididae), a potential biological control agent for waterhyacinth
Environmental Entomology 4 (3), 400-404
Abstract: Cornops aquaticum has been studied in Uruguay and Argentina to determine whether it is sufficiently host specific to be introduced into the USA as a control agent for water hyacinth (Eichhornia crassipes). Under field conditions, only E. crassipes, E. azurea and, rarely, Pontederia cordata were damaged, and only the former two species were acceptable for oviposition and egg development. Because of the high degree of feeding preference for Eichhornia spp. in the tests and the dependence of the insect on members of this genus for its development, C. aquaticum is considered sufficiently specific to Eichhornia spp. to be potentially useful to introduce for the biological control of water hyacinth in the USA.
(copied with permission from Acridological Abstracts)

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
classical biocontrol/new introduction
non-target effects/fate in environm.

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Pontederia crassipes (weed)		Argentina
	Pontederia crassipes (weed)		Uruguay
	Pontederia azurea (weed)		Argentina
	Pontederia azurea (weed)		Uruguay
Cornops aquaticum (weed bioagent)	Pontederia crassipes (weed)		Uruguay
Cornops aquaticum (weed bioagent)	Pontederia azurea (weed)		Argentina