Complete pest control can be achieved by growing your crop indoors. Pests can be physically stopped, but there is a separate problem of adequate sunlight. And having the plants pollenate is difficult without a helping hand from the bees. Some vegetables will not set if the flower is not pollenated.
A less effective method is to plant certain things that have a natural repellant for pests. Planting onion family crops along the borders of your plot can help. Members of the onion family include onions in red, yellow, and white varieties, shallots, leeks, chives, and even garlic. And as a bonus you get to eat the pest controlling bulbs from the onion family. Some pests will simply fly over the border crop, so add marigolds between your plants. They are supposed to assist with pest repulsion.
Of course you can increase the amount that you plant. That way the pests get some and you get the rest. I recommend using both natural repellants and adding to the crop.
To keep birds out consider scaring them. Never poison a bird. Birds will avoid things that are their natural predators. Use an owl to stop birds from entering your garden. Fake owls are easy to find, so choose a sturdy owl that will withstand the elements and set it in a visible location inside your garden.
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The principle of organic growing is Soil First. You nourish the soil, because by cultivating the soil you ensure the long term well being of the land and the quality of the crops grown from it. Civilizations rise and fall on the quality of their soil, and we are steadily wearing ours away. So anyone who gardens and farms organically is makes a contribution to the maintenance of our society.
And these things are all important.
blackspanielgallery, Organic farming and gardening are so Earth-friendly and so in line with anciently wise practices. Every new commitment to organic growing gives the Earth's air, lands, and waters more of a fighting chance against pollution.
Thanks for your insightful input. I respect your opinion.
Some crops need to be protected by netting, such as cauliflowers, for the wood pigeons would otherwise eat them. However, you can use animals to kill pests. I use frogs to attack snails and slugs, which is why I have a pond. I have found no secure way of protecting my cherries from wood pigeons.
Birds harvest my figs for me. some things are more likely to be eaten by birds such as berries. It depends what you are growing if they help or destroy.
I grow all my vegetables organically and I never try to scare birds out of the garden. I invite them in to eat the bugs and caterpillars that could be a problem.