Record ID No. |
780 |
Author(s) |
Ambrogioni,L., Capella, A., D , 2006 |
Affiliation |
Istituto sperimentale per la zoologia agraria, Mipaf, Firenze, Italy. |
Title |
Nematode control in fertirrigation. |
Source. Vol.(no):Page |
Informatore-Agrario, 62(21), 27-34p. |
Categories |
Arbuscular Mycorrhiza |
Subjects |
Biological Interaction |
Sub-subjects |
Nematodes |
Host |
Neem, Azadiractin |
Organism |
Glomus mosseae |
Country |
Italy, Europe |
Abstracts |
The problems of gall-forming nematodes, notably Meloidogyne spp., in the absence of methyl bromide are discussed in relation to the literature. Of particular interest for control is azadiractin, derived from the neem tree and of low environmental impact. The mode of action of azadiractin is explained in conjunction with an account of the life cycle of the gall nematodes. It limits the mobility of free larvae in the soil. Applied in fertirrigation to crops in tunnels, the azadiractin should be kept at a concentration of 0.04-0.06% in the solution, equivalent to 40-60 g/ha. With its low toxicity, it can be applied repeatedly to within 3 days of harvesting the crop. A simple program, Easyaza, exists to calculate the irrigation volume, timing of application and rates of the nematicide. A brief report is presented of trials in Campania and Sicily. Heavily infested soil may need pre-transplant application of a synthetic product such as phenamiphos or ethoprophos; alternatively solarisation under clear plastic sheets before transplanting leads to good nematode control with azadiractin. Another possibility for integrated control in organic crops is to combine azadiractin with mycorrhiza (Glomus mosseae). |