Author： Call F. Hague N.G.M.
Publisher： Brill
ISSN： 1875-2926
Source： Nematologica, Vol.7, Iss.3, 1962-01, pp. : 186-192
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Abstract
Chemical determinations were made of the concentration of ethylene dibromide at a number of points inside the soil throughout the duration of the fumigation and it was confirmed that the soil porosity is the most important factor controlling the spread of the fumigant through the soil. The concentration-time product at any point in the soil varied inversely as the soil porosity and directly as the dosage of fumigant. With Heterodera rostochiensis Woll. using the final cyst count, even at the lowest concentrations which could be determined, the nematode kill was too high to give a good regression of mortality on dose.
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