Laboratory experiments show that effective control of stem eelworms, removed from plant debris, can be obtained by fumigation under conditions which do not reduce either the germination of seed or the yield of lucerne grown from seed similarly fumigated.A practical fumigation of six tons of seed under a gas-proof sheet is described.
IntroductionThe incidence and distribution of stem eelworm in young lucerne stands strongly suggests that it is seedb0rne.l In laboratory experiments other races of stem eelworm occurring on onion,2 teazle3 and red clover4 have been controlled by fumigating the seed with methyl bromide and it was decided therefore to attempt to obtain control of the lucerne race by fumigating the imported seed. The work described here deals with the effect of methyl bromide fumigation on eelworm larvae extracted from stems, the germination of lucerne seed and the growth of lucerne raised from fumigated seed. Field evidence on the nematicidal effects of the treatments has been reported previously by Br0wn.l
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