Method of combatting plant diseases

Details Method of combatting plant diseases Method of combatting plant diseases

1981-12-15

1985-05-14

Hazel, Blondel

Drug, bio-affecting and body treating compositions

Whole live micro-organism, cell, or virus containing

Genetically modified micro-organism, cell, or virus

424 89, A61K 3912, A61K 3700, A01N 6300

Patent

active

045171777

ABSTRACT:
Yellows diseases have devastated crops, particularly of citrus fruit. They are associated with (and ostensibly caused by) very small mycoplasma or spiroplasma type organisms (MLO for short). Attempts at chemical control of MLOs have been unsuccessful. The present invention is based on a remarkable new finding that biological control can be achieved by introducing into the phloem of the plant a virus which is infective to the MLO. The invention is of particular interest in relation to diseases associated with Spiroplasma citri, especially in citrus plantations.

REFERENCES:
Townsend et al., J. of Bacteriology, vol. 142, No. 3, pp. 973-981 (1980).
Cole et al., "Spiroplasmaviruses", pp. 451-464.

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