PLANT PROTECTION 1 â Pests, Diseases and Weeds

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PLANT PROTECTION 1 – Pests, Diseases and Weeds INSECT ORDER Common names of members MANTODEA Mantids Praying mantids DISTINGUISHING FEATURES Life cycle Damaging stages & method of feeding ADULT Body Wings Legs Head NYMPH LIFE CYCLE METHOD OF FEEDING PLANT DAMAGE (not exhaustive) INDIRECT DAMAGE May bite if handled, eg BENEFICIAL ODONATA Dragon flies Damselflies ADULT Body Wings Legs Thorax NYMPH LIFE CYCLE INDIRECT DAMAGE METHOD OF FEEDING BENEFICIAL CLASS COLLEMBOLA Springtails ADULT Body Wings Antennae Mouth Legs NYMPH LIFE CYCLE DAMAGING STAGES & METHOD OF FEEDING DIRECT FEEDING DAMAGE Seeds, Chewing, eg seedlings, soft foliage INDIRECT DAMAGE BENEFICIAL SPRINGTAILS CLASS ARACHNIDA Order Acarina Mites Ticks ADULT Body Legs Eriophyid mites NYMPH LIFE CYCLE DAMAGING STAGES & METHOD OF FEEDING DIRECT FEEDING DAMAGE Leaves, Blisters, eg shoots Chlorosis, eg Defoliation, eg Leafrolling, eg Pigmentation, eg Silvering, eg Witches' broom, eg Fruit Malformation, eg Russetting, eg Stems Bronzing, eg Galls, eg Bulbs, Rotting, eg roots INDIRECT DAMAGE Webbing, eg Transmit virus diseases, eg BENEFICIAL MITES 222 Insects and allied pests - Review questions and activities
PLANT PROTECTION 1 – Pests, Diseases and Weeds INSECT ORDER Common names of members CLASS ARACHNIDA Spiders DISTINGUISHING FEATURES Life cycle Damaging stages & method of feeding ADULT Body Wings Legs Mouth NYMPH LIFE CYCLE DAMAGING STAGES & METHOD OF FEEDING PLANT DAMAGE (not exhaustive) DIRECT FEEDING DAMAGE Rarely eats plants INDIRECT DAMAGE Quarantine problem, eg Some have venomous bites, eg Web foliage together, eg Annoy fruit pickers, eg BENEFICIAL SPIDERS CLASS MALACOSTRATA Slaters CLASS DIPLOPODA Millipedes ADULT Body Wings Legs Mouth Antennae NYMPH LIFE CYCLE DAMAGING STAGES & METHOD OF FEEDING ADULT Body Wings Legs Antennae Odour NYMPH LIFE CYCLE DIRECT FEEDING DAMAGE Seedlings, Nibbled, eg stems, tender foliage, fruit INDIRECT DAMAGE BENEFICIAL SLATERS DIRECT FEEDING DAMAGE Soft roots, Chewed, eg leaves, fruit INDIRECT DAMAGE BENEFICIAL MILLIPEDES DAMAGING STAGES & METHOD OF FEEDING CLASS CHILOPODA Centipedes ADULT Body Legs Antennae Wings NYMPH LIFE CYCLE INDIRECT DAMAGE Fast moving and aggressive, can be frightening, eg DAMAGING STAGES & METHOD OF FEEDING BENEFICIAL CENTIPEDES Almost exclusively predatory, eg Insects and allied pests - Review questions and activities 223
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Insect secretions PLANT PROTECTION
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Root structure of dock (Rumex spp.)
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PLANT PROTECTION 1 â Pests, Diseases and Weeds