The common red spider (Tetranychus telarius) is a mite which feeds on various weeds, garden and field crops, bananas, shrubs and pome and stone fruit trees. Beans and strawberries may be heavily infested and during dry weather rockmelons and cucumbers may be seriously injured. Garden plants which may be extensively damaged are roses, violets, dahlias, hydrangeas, etc. Fruit trees are not normally infested.
Red spiders are so small that a magnifying glass is necessary to see them plainly. They occur on the undersides of the leaves, where they lay their minute spherical eggs and spin delicate webs. The eggs hatch in a few clays into six-legged larvae which in turn give rise to eight-legged nymphs. Adult males and females then appear and give rise to further generations, each of which may require as little as nine to eleven days.
Hot dry weather favours red spider activity and most damage is caused naturally during the warmer months. The winter is usually passed in the adult stage.
The red spiders suck the sap from the leaves causing a mottled appearance due to innumerable feeding punctures, and in severe infestations the leaves may turn yellow and fall prematurely. |
|
 |
Retaining Walls -
There are generally four main common types of concrete , How to Make Compost retaining walls: Gravity retaining walls , Bean Fly - Gravity retaining walls , Will lime break up clayey soil? are retaining walls , Formal and Informal Gardens that depend on their own weight and also any soil , Growing Lawns in Shaded Areas that is resting on the concrete , Growing Lawns in Shaded Areas in resisting lateral earth , Hydroponic Systems - Aquaculture fo...
Vine Moth -
Caterpillars of the vine moth (Phalaenoides glycine) are one of the most common pests , Indoor Gardening Tips of the grape vine, and if allowed to remain unchecked may seriously damage the young hunches and defoliate the vines. In addition to feeding on vines, they also feed on...
Companion Planting for Roses -
Ideally, roses , Garden Feng Shui should be planted in beds or borders where there is little or no competition from other flowers , Mulching Roses and shrubs, , Cactus Propagation even in winter. , Growing Ginger If, however, space is limited, other flowers , Cactus Propagation may be combined with them either by widening the rose , Stony Soil bed to leave spac...
Preparing your lawn - Levelling -
You can level an area fairly accurately by these means. You will need a straight edge and a carpenter's or bricklayer's spirit level. The straight edge could be a piece of 15 x 2.5 cm oregon or other, light , Garden Design timber, dressed straight and parallel and about...
Tree and Shrub Propagation -
Propagation. Trees , How to Prune Bonsai Roots and shrubs , Repotting Houseplants are increased by: 1. Seed; 2. Division, layers or cuttings; 3. Budding and grafting. Seed: This method is slow and in some cases impossible for trees , Lawn Plugs - Plugging because many foreign species fail to produce seed , Landscaping with Trees until they are quite ol...
How To Transplant Australian Native Seedlings -
The seed , Plant Diseases in Australian Natives of eucalypts and many other species contain two tiny leaves (cotyledons) which emerge when the seed , Feature Walls sprouts. As the plant , Gardens and Garden Design grows in size, the first pair of true leaves appear and these in turn are followed by a second pair. When a small shoot rise...
Care of lawns in shaded areas -
If the lawn-to-be will receive at least two hours of direct sunlight or its equivalent in dappled sunshine (very light , Espalier shade with sun , Roses filtering in through for most of the day) ordinary grass , Vegetable Garden Design mixtures intended for sunny places , Plants for Window Boxes are satisfactory, but in plac...
Lawn Sods - Instant Lawn -
The quickest way to make a lawn , Low Maintenance House Plants is by laying sod, to carpet , Rose Suckers the ground completely with living turf. If you must buy the sod, it is also the most expensive method, but sometimes the sod can be taken from another part of the garden. , Noxious Weeds of Australia Possibly a building, , Sowing Seed a p...
Noxious Weeds of Australia -
SIAM WEED - (Chromolaena odorata) Considered to be one of the world's worst weeds. , Planters for Houseplants This weed, , Grass Seed Mixtures first found in Australia in 1994, has the potential to cause major damage to coastal ecosystems. It has a spreading habit similar to Lantana, but is more aggress...
|
|
|
|
