Early spring is the time to hang parasitic wasp (Encarsia formosa) cards up in new plantings of tomatoes and eggplant to protect these vegetables from white fly.
These insects are 2-4 mm in length, pear-shaped and often covered with white waxy filaments that give a fluffy appearance, as though they are covered with wool.
We like to buy our vegetable seeds from trusted mail order seed companies, this way we get a considerable range of varieties for a lifetime of experimentation and flavour. Here are our favourites.
Robin Powell reports from behind enemy lines on the fascinating, infuriating fruit fly.
A hedge is many things. It can define areas of the garden; shield you from the curiosity of passersby; block ugly intrusions into your view; protect your privacy; offer favourite plants a green backdrop against which to dazzle; or simply give your garden a nestling sense of enclosure and cosy comfort. Here Graham Ross answers the most-asked questions on hedge cultivation and care.
Want the best-ever roast potatoes? Simple, delicious and deeply comforting the humble roast spud is a must-have in the cook’s bag of tricks. Here are a few of our favourite versions.
Check roses, citrus, cherry and peach carefully when you water, looking for clusters of small insects hiding under leaves or on new growth: aphids.
Given the chance those annoying little suckers bothering your flower buds now can become an infestation later. But if you get in early enough you can manage the problem without using any chamicals, just a few little backyard-buddies. Its time to get out there and evict your unwanted tennants!
Regretting not spraying against bindii in winter? Bindii (Soliva pterosperma) is a low-growing annual herb with leaves like a carrot top. It produces a single flower at its centre that matures into a prickly seedpod that sticks in bare feet.
This native bee is found in every part of Australia except Tasmania. It gets its name from the iridescent blue or white bands around its abdomen.
Humid, still conditions are the perfect breeding ground for botrytis, a fungus that affects plant tissue.
Bronze orange bugs are nasty pests that suck sap from young shoots, fruit and flowers of citrus trees.
Female moths, which can be recognised by their mottled brown colour, lay their eggs under leaves. When the larvae hatch, the brown-striped caterpillars tunnel into stems.
Bulging citrus stems indicate the presence of citrus gall moth, which lays its eggs in the bark at the ends of citrus branches.
A silvery trail on foliage is the telltale sign of this pest. Eggs were laid in the leaf by the moth last year and the trail is the hatched insect eating its way out. Further in their lifecycle leaf miners curl the leaves completely in on themselves, and pupate into small moths. These are active at night, so are rarely seen.
Cup moths are so-called due to the cup-shaped cocoon they attach to the tree branches, or surrounding leaf litter, of eucalypts, brush box and pittosporum. They are also known to attack apples, apricots and cherries.
This is a fairly new disease (Coleosporium domingense syn C. plumeriae) in Australia. It is believed to have arrived from Florida in an infected frangipani cutting 15 years ago.
This is the king of the autumn caterpillars, a voracious eater that grows into a sizeable creature up to 7cm longwith large spots along its body and a white-tipped spine at the end. It feeds on tender foliage, and can decimate a patch of impatiens or sweet potato in a couple of days.
Despite their name, Azalea lace bugs are also enemies of rhododendrons. Their attack is evidenced by widespread silvery mottling and sticky, brown patches on the underside of leaves. It’s best to spray now, at the beginning of the growing season.
These voracious caterpillars can destroy a clump of clivias or other lilies in record time.
When plants are low in magnesium, they move what they have from the old leaves to feed the new. Consequently older leaves begin to yellow from the sides to the centre.
Peach leaf curl is a parasitic fungus that causes new leaves on peaches and nectarines to become disfigured.
Powdery mildew is a widespread fungus that is carried by the wind. It multiplies rapidly in high humidity so thrives in overcrowded garden beds where the air circulation is poor.
Thrips suck and rasp at flower petals causing discolouration.
These two insects feed under the azalea leaves, causing a mottled discolouration on the topside of the leaves.
Scale insects are some of the most common garden pests around. They attract other pests and suck the vigour from your plants, but they are easy to control and even easier to prevent.
Here's what's happening in the garden world this winter.
Peter Gilmore’s delicious ‘fettuccini’ uses golden squash as both noodle and sauce in a dish that’s much easier than it looks.
Frost-sensitive plants such as hibiscus, frangipani, passionfruit, citrus, deciduous fruit trees, and some vegetables can be adversely affected by frost.
It's easy to be seduced by the colour, forms and perfumes of roses, but not as easy to successfully grow them. Here Mez Woodward shows us how to plant your bare-rooted rose.
In this edited extract from A Tree in the House, self-taught florist Annabelle Hickson shares her key tip for arranging flowers beautifully.
When I was a child all our neighbours and friends had a large tub - generally an old enamel washing machine tub - buried close to the vegetable garden. This was the ‘brew’ tub. Ingredients for the brew - compost, manures and seaweed - were widely discussed and benefits widely acclaimed. And it turns out these gardeners were onto something!
Plants clipped into balls add form and structure to the garden, and beautifully balance wilder, looser planting. The repetition of shapes develops rhythm which holds the garden together, while the contrast with other shrub shapes adds variety and interest.
While subsoil drainage, such as drainage grates, gravel pits and sumps, are effective in light rain, heavy downpours overwhelm pipes and the water sheets across the landscape. Arno King has some tips top help cope when the heavens open up.
Most warm-season grasses stop growing when the nights turn cold, allowing weeds to get a foothold while your attention has turned indoors. So now is the time to target terrors like bindii, wintergrass and dandelions and avoid seeding - and many years more weeding - before boosting growth for lush summer lawns.
Most warm-season grasses stop growing when the nights turn cold, allowing weeds to get a foothold while your attention has turned indoors. So now is the time to target terrors like bindii, wintergrass and dandelions and avoid seeding - and many years more weeding.
Many questions from radio callers to Garden Clinic on 2GB on the weekends involve roses. We feel your pain! These are our go-to fixes for six common rose problems.
Fresh, vine-ripened tomatoes are one of the great joys of summer. The best way to ensure that your tomato-growing experience delivers baskets of delicious fruit is to keep plants healthy.
African violets are treasured, long-lived indoor plants. Make them shine with these tips.
The plants I'm talking about here are botanically speaking Pelargonium though commonly called geranium. True Geranium species are delicate-looking perennials, usually with blue flowers.
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