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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 />

Nematode <strong>Diseases</strong><br />

Root knot nematode galls (up to 25 mm across).<br />

BIOLOGY & IDENTIFICATION 252<br />

No. diseases in Australia 252<br />

Some distinctive features 252<br />

Life cycle 252<br />

Method of feeding 253<br />

Symptoms 253<br />

Classification 256<br />

Identification <strong>and</strong> sampling 256<br />

List of some species 257<br />

Distribution within plants 259<br />

Disease cycle 259<br />

Overwintering, oversummering 260<br />

Spread 260<br />

Conditions favouring 261<br />

INTEGRATED DISEASE MANAGEMENT IDM) 262<br />

Control methods 263<br />

Legislation 263<br />

Cultural methods 263<br />

Sanitation 263<br />

Biological control 263<br />

Resistant, tolerant varieties <strong>and</strong> rootstocks 264<br />

Plant quarantine 264<br />

Disease-tested planting material 264<br />

Physical <strong>and</strong> mechanical methods 264<br />

Nematicides 265<br />

Non-fumigant nematicides (Table 51) 266<br />

Fumigants (Table 52) 267<br />

EXAMPLE OF A NEMATODE DISEASE 268<br />

Root knot 268<br />

REVIEW QUESTIONS & ACTIVITIES 272<br />

SELECTED REFERENCES 272<br />

Nematode diseases 251

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