western-queensland-gardening-guide.pdf - South West NRM

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Caterpillars or grubs on vegetables There are many different types of caterpillars or grubs whch occur from time to time, and cause severe damage. Control Most species of these pests can be controlled by spraying with carbaryl (Bugmaster) or diazinon (Diazinon 800). White cabbage butterfly or cabbage grub The larvae of this butterfly are velvety green grubs, up to 4 cm long, which devour the leaves of cabbages and related species. They leave belund obvious black excrement. Control Dipel Bacterial Spray should be used when grubs or butterflies are seen. Nematodes (eelwo These pests are not confined to vegetables, but attack flowers, shrubs and trees as well. However, as most enquiries are about root knot nematodes in vegetables, they will be dealt with in this section. Vegetables which are grown in <strong>western</strong> Queensland and which are affected by root knot nematodes include beetroot, cabbage and related crops, carrots, parsnips, lettuce, tomatoes and curcurbits such as pumpkins, melons and cucumbers. Nematodes are microscopic: the majority of soil nematodes range in length from 0.5 mm to 2 mm and in width hom 10 to 50 microns. The above-ground symptoms of root nematode infestation are, lack of vigour and reduced tolerance to drought. With trees, foliage may be small and leaf-drop and dieback may occur. Below the ground, numerous irregular swellings or galls on the roots are a characteristic symptom. ere fleshy tissues are present, extensive tissue destruction causes rot to develop. Excessive root branching may occur, causing the development of a densely matted root system on plants which are normally strongly taprooted. Control - cultural practices Crop rotation with resistant crops is effective in reducing the damage caused by many nematodes. The incorporation of large amounts of organic matter into the soil and the use of an organic surface mulch reduces the severity of injury because these practices create conditions which are favourable to the natural enemies of nematodes. Organic material should be incorporated into the soil well before planting and crops should not be planted until decomposition is complete. The use of a period of bare fallow, with the soil kept weed free, especially during hot weather, will reduce the nematode
population. In orchards and vineyards the use of nematode-resistant rootstocks, for example, certain varieties of peach and grape, help to overcome the nematode problem Chemical con fro1 The nematicide fenamiphos (Nemacur Grantllar NernaticideR) can be applied at or before planting to control nematodes in annual vegetables and flowers. The granules are spread evenly over the bed, forked into the top 15 cm and watered in. For established trees and shrubs, granules are sprinkled on the soil in the root zone and watered in. Nemacur Granular NematicideR is poisonous and should be handled with care, as per label directions.
Page 1 and 2:
Information Series QI96050 Gardenin
Page 3:
Acknowledgments This booklet is mad
Page 6 and 7:
Chapter 1. Gardening with bore wate
Page 8 and 9:
At the neutral pH level, that is 7,
Page 10 and 11: Sulphur can also be a very useful w
Page 12 and 13: Table 1. Recommended pH range a. Fl
Page 14 and 15: Table 2. Australian native plants s
Page 16 and 17: B. Exotic trees, shrubs and creeper
Page 18 and 19: Table 5. Species lists for heavylcl
Page 20 and 21: Chapter 2. Growing better lawns Kee
Page 22 and 23: Some of the fertilisers will absorb
Page 24 and 25: fertilised regularly to promote vig
Page 26 and 27: Suitable species This is a big subj
Page 28 and 29: A lot of people water pot plants by
Page 30 and 31: Preparing the hole Dig a hole about
Page 32 and 33: Ferti Iiser A small application of
Page 34 and 35: Plant into deep soil moisture Good
Page 36 and 37: The tree's growing space extends ar
Page 38 and 39: Mulching: For mulching to be effect
Page 40 and 41: Particulars for mulch application S
Page 42 and 43: Fertilising native trees Most nativ
Page 44 and 45: Table 7. Types of fertiliser Note:
Page 46 and 47: Figure 18. Simple home-made guards
Page 48 and 49: Chapter 5. Propagation of trees and
Page 50 and 51: Gently water in the seed and keep i
Page 52 and 53: Fertilising: It is necessary to sup
Page 54 and 55: Follow safety warnings Most materia
Page 56 and 57: mite wax scale White wax scale (Gra
Page 58 and 59: Vegetables Insect pests of curctrrb
Page 62 and 63: Roses and other flowers Dieback in
Page 64 and 65: an eye dropper or an oil can, injec
Page 66 and 67: I!OS JaAO 6!p pU@ s~)!uJ~) leya~eur
Page 68 and 69: Chapter 8: ich pesticide to use (Ad
Page 70 and 71: Table 12. The easy guide to chemica
Page 72 and 73: Nicotine spray This spray has been
Page 74 and 75: &e%tuce This deters most insects. I
Page 76 and 77: Index Aphids 54 Ants 18 Australian
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