Abstract
Demonstration of specificity, on the one hand, of the biological control agents for the weedChondrilla juncea L. [Compositae: Cichoriae] as compared to those for the control of the weedsEchium plantagineum L. andHeliotropium europaeum L. (Tubiflorales:Boraginaceae) represents 2 extremes.
In the case ofC. juncea the phytochemical data was insufficiently known to be of value and if it had existed, would have been of little value in demonstrating quarantine safety for certain of the agents. However, in the case of the 2Boraginaceae there is strong evidence that studies based on phytochemical data would have confirmed specificity.
Résumé
L'étude de la spécificité des agents de lutte biologique contre la mauvaise herbeChondrilla juncea [Composées: Chicoracées] et contre les mauvaises herbesEchium plantagineum etHeliotropium europaeum (Tubiflorales: Boraginées) fait apparaître 2 cas extrêmes.
En ce qui concerneChondrilla juncea, les données biochimiques sont de faible valeur pour l'étude de la spécificité en quarantaine de certains de ses antagonistes. En revanche, pour les 2 Boraginacées, il est montré que des études basées sur des données biochimiques auraient confirmé leur spécificité.
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Wapshere, A.J. Problems in the use of plant biochemistry for establishing the safety of biological control agents for weeds: TheChondrilla andEchium/heliotropium cases. Entomophaga 28, 287–294 (1983). https://doi.org/10.1007/BF02372179
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DOI: https://doi.org/10.1007/BF02372179