Red Spider Mite Control and Prevention

Lauren Alex O’ Hagan, Cardiff University

Q: I’m thinking of buying a polytunnel to extend the growing season, but while many of my gardening friends think it’s a great idea, others have warned me off it, saying that they’re a lot of work to look after. Any advice would be welcome. PK, Co Kildare

Add a striking color combination to your rooms by growing these Houseplants with Red and Green Leaves!

Sources Tetranychus urticae Female of the red form of the spider mite Scale : mite body length ~0.5 mm Creative commons by Gilles San Martin, on Flickr Chuck Crandall ‘Whats wrong with my plant?’

Some trees are named to confuse. The Indian Bean Tree is not from India and it doesn’t grow beans. As a native of north America it is named for a North American native Indian tribe. The seeds are produced in long bean like pods.

Ornamental Japanese Maples are widely available for planting in your garden. The autumn colouring makes these trees spectacular when planted en mass in a woodland or Japanese garden setting.

I originally wrote this last year but now in April I have checked my Chrysanthemum plants in the cold greenhouse and find I am infested! So it must be worth a rerun. Evil weevil grubs eat roots and tubers of your favourite plants. My tuberous begonias were attacked and destroyed by these pesky pests. It is the white grubs that cause the damage as they eat roots and tubers throughout vine weevil puberty to become small black beetles. The beetles will nibble the edges of leaves but it is the laying of eggs that ultimately cause the problem. The eggs become grubs and your Cyclamen, Primula and Camellias become grub for weevils. Pot grown plants are most susceptible to attack but this pest also affects other plants such as Fuchsias, Gloxinia and Strawberries.

Oak trees conjure up images of Robin Hood and mystical Oak forests. Britain has made good use of Oak trees down the centuries. ‘From little acorns great Oak trees grow’

Hay fever and Asthma attacks can be brought on by Scented Plants as well as pollen or Fungal Spores. Histamin problems can also be exacerbated by scent and smells in the garden.

For something a bit different this book on botanic art covers some of the unusual colours from black flowers, plants and seaweed like strange green, blue and puce pink.

One thing is sure the climate in your garden will change. You already know one week will be different to the next and I can’t remember when two months or any years were the identical to others. In many areas you can get 3 or 4 seasons in one day (or in Scotland one hour!).

Snowdrops are officially called Galanthus. This snowdrop is Galanthus elwessii with larger than normal blooms and a honey scent the other main species are Nivalis and Plicatus. The snowdrop is very hardy, grows in most soils and prefers partial shade.