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C. Ramirez ; P. Caballero ; H. Niemeyer | 1999We hypothesized that aphids after previous exposure to hydroxamic acids (Hx), a family of secondary plant compounds deleterious to aphids, are able to reduce their subsequent exposure to them. This hypothesis was tested by evaluating the time to[...]
article/chapitre/communication
P. Caballero ; C. Ramirez ; H. Niemeyer | 2001The effect of alternative host condition on the pattern of specialisation of the aphid Rhopalosiphum maidis (Fitch) was studied. R. maidis commonly occurs in Chile on Johnson grass (Sorghum halepense L.) but rarely on contiguous wheat (Triticum [...]
