The Zimbabwean Gardener Issue 16 Autumn 2016 Low res | Página 7

Organic gardens Three steps to growing healthier plants organically Prevention is better than cure; keep your plants healthy by: 1. Feeding Feed them regularly with organic fertiliser and compost so that they are more resistant to pests. 2. Plant companion plants • Garlic, rosemary, lavender, wormwood, pennyroyal and catnip help to ward off mites, aphids and fungal diseases. • Sage, comfrey and chamomile are also great companion plants that boost general nutrient absorption and plant health. 3. Cultivate a biodiverse, healthy ecosystem in your garden • Earthworms turn over and soften the soil and move organic matter downward; their castings provide vital plant nutrients. • Beneficial soil fungi and mycorrhizae form a network that moves nutrients and water through the soil to your plant’s roots. Some of them also directly impart disease resistance to your plants. Killing these fungi by spraying your plants with chemical fungicides ironically makes your plants more susceptible to the diseases and pests you are trying to eliminate. • If you include dense shrubs and trees for birds to nest in, as well as some indigenous fruit, seed plants and bird baths in your garden, then you’ll encourage a healthy population of birds that will keep your insect pests in check. • Keep guinea fowl or bantams in the garden to control termites, crickets, cutworm and other pests. Your soil is your foundation! It’s impossible to achieve a healthy pest-free garden without investing in your soil. Organic control techniques and methods Route 1: Buy organic pesticides Many of the leading nurseries around Harare stock H