Orchids
4 pages tagged with this crop. All crops →
Snails Giant African Snail - Achatina fulica Symptom of damage They feed on the young leaves, roots, flower buds and even open flowers. Slugs usually hide during day and become active during night Presence of slimy fluid on foliage Management Apply 15% metalde
Symptom of damage Red spider mite suck the sap from cells of leaves – causing white specks. In heavy infestation webbing on the plants. This is a serious pest on orchids during warm and dry season. Management The predatory phytoseiid mites, Amblyseius sp. and
Mealy bugs Symptom of damage Mealy bugs cover the stem and leaf, suck the sap, secrete honeydew and attract ants. In severe infestation, sooty mould may develop on the leaves. Affected plants lose their vigour. Management Lady bird beetles Cryptolaemus montrou
Scales: Diaspis boisduvali , Aspidiotus destructor Symptom of damage Nymphs and adults suck the sap from leaves It damages both leaves and pseudobulbs Honey dew excretion causes development of sooty mould fungus Yellowing of leaves Wither and dry up It is the