16 results on '"Roberts H"'
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2. Genetic and environmental regulation of plant architectural traits and opportunities for pest control in raspberry
3. Exploiting physical defence traits for crop protection: leaf trichomes ofRubus idaeushave deterrent effects on spider mites but not aphids
4. Cellulose xanthate as a soil conditioner: implications for weed control with some soil-applied herbicides.
5. Seed survival and periodicity of seedling emergence in twelve weedy species of Compositae.
6. Seed survival and periodicity of seedling emergence in some species of Atriplex, Chenopodium, Polygonum and Rumex.
7. Growth and yield of high-density cauliflower crops treated with pesticides to control weeds and cabbage root fly ( Delia brassicae).
8. Weed competition in drilled summer cabbage.
9. Weed competition in vegetable crops.
10. Herbicides and insecticides: their compatibility and effects on weeds, insects and earthworms in the minicauliflower crop.
11. Seed survival and seasonal emergence in some species of Geranium, Ranunculus and Rumex.
12. Seed survival and seasonal pattern of seedling emergence in some Leguminosae.
13. Crop and weed emergence patterns in relation to time of cultivation and rainfall.
14. Seed survival and periodicity of seedling emergence in eight species of Cruciferae.
15. Seed survival and periodicity of seedling emergence in ten species of annual weeds.
16. Influence of the soil conditioner cellulose xanthate on the activity and persistence of nine acetanilide herbicides.
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