Weather-induced mortality of the citrus
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G.C. Green; H.D. Catling
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Article
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1971
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Elsevier Science
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Green, G. C. and Catling, H. D., 1971 . Weather-induced mortality of the citrus psylla, Trioza erytreae (Del Guercio) (Homoptera: Psyllidae), a vector of greening virus, in some citrus producing areas of southern Africa. Agr. Meteorol., 8: 305-317. A saturation deficit index (S.D.I.) is defined fo