First experiences in Italy of IPM on ornamental cut foliage: Danae racemosa and Fatsia japonica
2000
Sacco, M. ((Istituto Sperimentale per la Floricoltura, Sanremo (Italie))) | Pasini, C. | D'Aquila, F. | Fadelli, P. | Tommasini, M.G.
On the Northwest coast of Italy, ornamentals and cut foliage are the main cultivated crops. Italian, European and nowadays also North American markets show a big interest in such crops. Among cut foliage crops, Ruscus (Danae racemosa) and Fatsia (Fatsia japonica) are two of the most important and to enhance the quality of these productions, an application of IPM using natural enemies has begun. Parasitoids and predators, as for example Phytoseiulus persimilis against spider mites, Aphidius colemani, Lysiphlebus testaceipes and Harmonia axyridis against aphids, Cryptolaemus montrouzieri against scales and Heterorhabditis spp. against larvae of weevils (Otiorrhynchus spp.), were released. The efficacy of the seasonal inoculative releases of the natural enemies and microbial control agents (e. g. Bacillus thuringiensis against Lepidoptera) was generally good and satisfactory for the farmers too. Occasionally, it was necessary to spray some pesticides. Recently, an important new exotic pest, Protopulvinaria pyriformis, has been recorded to attack Fatsia, increasing problems in defending this crop. Due to the absence of effective natural enemies and to its resistance to selective pesticides, P. pyriformis is showing to be now an obstacle to the development of IPM on Fatsia. The experience carried out so far seems to show good possibilities for the application of IPM and biocontrol also on cut foliage, although further confirmation is needed and some problems have to be solved yet
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Эту запись предоставил National Institute for Agricultural Research