Bronze orange bugs (Alusgraveia sulciveniris), pests of coastal citrus trees, feed by puncturing the tissues and extracting the sap, causing the young shoots to wilt. The foliage may become scorched and spotted by their corrosive excretions. Where heavy infestations occur, the trees may become denuded of foliage, the flower and fruit-stalks may he attacked and the crop lost.
The eggs are laid on the leaves, in groups of about fourteen. They hatch in about 8 to 14 days during January, February and March. The first stage nymphal bugs remain near the empty egg shells, but do not feed.
A few days later, they cast their skins and enter their second stage, and remain, inactive on the trees, throughout the winter. In this stage, they are flattened and almost transparent and are refe.red to popularly as being in their " tissue paper " stage. They settle on the undersurfaces of the leaves, sometimes singly, sometimes in sufficient numbers to cover almost the whole of the leaf surface.
Second stage bugs are not active until about the end of August or early September, when they commence to feed on the succulent new leaves. They become distended, and after feeding for three or four weeks, cast their skins to enter their third nymphal stage, feed for about three weeks, and again cast their skins to enter their fourth stage. Later, the bugs again cast their skins and enter their fifth nymphal or pre-adult stage, being very active, feeding voraciously, and readily discharging their " buggy-smelling " caustic fluid.
Winged adults begin to appear on the trees in December and may be found throughout the summer. Most of these, however, will have deposited their eggs and died by about the beginning of April. |
|
 |
Watering Cactus -
It is true that in their native state they only receive scant amounts of rain, but they also acquire water , Growing Palms from Date Stones through their spines from the frequent heavy dews at night. In cultivation, cacti do enjoy a fair amount of water , Growing Cacti and Succulents during the growing season. , Pruning Roses Begin w...
Garden Furniture -
Garden furniture , Seed Raising and Drainage is an essential addition to compliment your well planned outdoor environment. , Cactus Pests and Disease There are a variety garden , Medicinal Tea - Catnip furniture options you ca use to make the most of your outdoor , Cactus Pests and Disease living experience....
Ferns -
Ferns can be used to create a cooling, restful section of landscape, , Plant Virus Diseases often where it is difficult to grow , Orchid Flowers a range of general plants. , Shredders Nurseries are offering an increasing number of ferns, and regular visits show that the unusual or rare ones are more often...
Peony -
The peony or paeony (Paeonia) is actually the sole genus in the plant , Growing Ginger family Paeoniaceae. Most are herbaceous perennials , Weed Control Methods that are generally 0.5-1.5m tall, but some are woody shrubs , When Should I Water My Indoor Plants? that grow , ing Ginger up to 2-3m tall. They produce very large, often f...
Lawn Sprigging -
Sprigs are young rooted shoots , pieces of stolon with leaves and roots , Light Requirements for Home Gardens attached. Lawns , Hanging Baskets of subtropical grasses , Keeping Your Plants in Happy Surroundngs â€ââ...
Bamboo Floors -
Bamboo floors , Furniture Beetle can give you the beauty of natural , Stony Soil wood in your home , Garden Design without having a disastrous effect on our environment. , Choosing House Plants Bamboo floors , Link Footer have now become the ideal choice for those looking to beautify their homes , The Garden in Winter with long lasting, hard wearing environmenta...
How to Use a Dibble -
Push the dibble down into the prepared soil. , Containers for Bonsai If the point of the dibble is sharp and the wood , Hoodia Gordonii is smooth it will make a cylindrical hole. Make a hole large enough to comfortably hold all the roots , Bulb & Spring Flower Combinations of the young plant. , When to Sow Grass Seeds Put the plant , When to Sow Grass Seeds in the hole, inserting al...
Adenium -
Adenium is a genus of flowering plants , Vegetable Garden Design of the family Apocynaceae. It is native to tropical , The Woolly Aphid and subtropical eastern and southern Africa and also Arabia....
Creating a New Garden -
Modern homes, , Australian Bushland Gardening with their individual designs, , How to Lay Floor Tiles call for a fresh approach to landscaping. , Gardens and Garden Design No hard and fast rules can be given for making a garden , Orchid Flasking because so much will depend on personal choice and on local , Vegetable Gardens soil conditions and climate. , Stony Soil To be successful it is...
|
|
|
|
