Alocasia macrorrhiza

One of the aroids, of minor significance, cultivated in S.E. Asia. Almond

See: Prunus amygdalus. Alternaria

This genus is an imperfect fungus (i.e., it has no sexual stage) with an extremely wide host range. Various species of Alternaria cause leaf and fruit spots on citrus, brassicas, flax, potatoes, tomatoes, leeks, onions, and other crops. The spots form concentric rings of colonisation and the disease is often called 'ring-spot' or 'target spot'. It is easy to accumulate horizontal resistance to this fungus and plant breeding clubs should take it into account when breeding many species of vegetables.

Growing Soilless

Growing Soilless

This is an easy-to-follow, step-by-step guide to growing organic, healthy vegetable, herbs and house plants without soil. Clearly illustrated with black and white line drawings, the book covers every aspect of home hydroponic gardening.

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