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PLANT PROTECTION 1 – Pests, Diseases and Weeds

PLANT PROTECTION 1 – Pests, Diseases and Weeds

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<strong>PLANT</strong> <strong>PROTECTION</strong> 1 – <strong>Pests</strong>, <strong>Diseases</strong> <strong>and</strong> <strong>Weeds</strong><br />

Snails <strong>and</strong> Slugs<br />

Snail damage to broccoli leaves.<br />

BIOLOGY & IDENTIFICATION 228<br />

No. species in Australia 228<br />

Some distinctive features 228<br />

Method of feeding 228<br />

Feeding <strong>and</strong> plant damage 229<br />

Classification, identification, diagnostics 229<br />

List of some species 230<br />

Pest cycle 231<br />

Overwintering, oversummering 231<br />

Spread 232<br />

Conditions favouring 232<br />

INTEGRATED PEST MANAGEMENT (IPM) 233<br />

Control methods 233<br />

Legislation 233<br />

Cultural methods 233<br />

Sanitation 233<br />

Biological control 234<br />

Resistant, tolerant varieties 234<br />

Plant quarantine 234<br />

Pest-tested planting material 234<br />

Physical <strong>and</strong> mechanical methods 234<br />

Molluscicides 235<br />

Molluscicides (Table 47) 236<br />

Molluscicide safety (Table 48) 237<br />

REVIEW QUESTIONS & ACTIVITIES 238<br />

SELECTED REFERENCES 238<br />

Snails <strong>and</strong> slugs 227

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