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Is this true? If so, it gives me an idea
Steve Harris wrote:
I had loads of hoverflies before I even bought a packet of marigold seed. Once the marigolds were up, the hoverflies ignored them. Maybe they did eat a few aphids but not all. That's right. If they ate them all, then they would have nothing left to eat. Then it's also well known that ladybirds eat aphids. I had loads of both but the ladybirds couldn't be arsed to wander over to the aphid-ridden plants. Ditto. The aim of attracting predators of pests is not to wipe out the pests but to reduce them to manageable levels. So I sprayed. Job done. Joni Mitchell sang "give me spots on my apples, leave me the birds and the bees". Evidence-Based Gardening anyone? Your mileage obviously varied but sounds like you were trying to hit a different target. -- Nick Wagg |
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