Questions

Over ten years, Gerry Daly answered more than 5,000 gardening questions. His knowledge is based in science and practical experience, and by working on radio and television. Access to the advice database is open

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It said last week to check on stored dahlias to make sure they have not dried out. I thought that the idea of storing them was to make sure that they are dry before being put away so that they don't rot. I dried mine & put them in newspaper in a box. Surely if I take them out and soak them, it defeats the purpose of storing them dry?

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I have one Black Hamburg grapevine in a glasshouse. It is 30 years old. Grape crops were excellent up to 6 years ago when it was attacked by mealybugs brought in on an ornamental plant. How can I get rid of this pest chemically? I have tried control by cleaning off old bark, squashing egg-nests, etc., but the pest lives on despite these efforts.

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I received a gift of a rose bush but I am not sure how to plant it at this time of the year - any tips? things I should avoid?

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We have a 2 acre south facing site in W. Mayo, very windy, 1/2 mile from the sea. Most of the site is peaty loam, very fertile although somewhat acid & wet in the lower part; also sandy soil on the hill (poor fertility, very stony). Up to now, we have focused on veg & fruit. We would like to add all-year round colour, esp. perennial shrubs & trees, yellow, blue, red/pink, etc. Maybe too windy for camelias. Any suggestions (top 10, say) ?

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I am planning on purchasing a lean-to glasshouse. It is a very exposed site beside a lake, subjected to strong winds. What type of glass would you recommend? Is there a strength difference between safety & horticultural glass?

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Sparrows are pecking at the silicone on my windows causing damage. Any ideas?

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