19 results on '"Dunn, J. A."'
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2. The development on potatoes of a glasshouse strain of Myzus persicae resistant to organophosphorous insecticides.
3. Varietal differences in the susceptibility of Brussels sprouts to lepidopterous pests.
4. Study on inheritance of resistance to root aphid, Pemphigus bursarius, in lettuce.
5. Resistance to attack by Brevicoryne brassicae among plants of Brussels sprouts.
6. Seasonal changes in aphid populations on Brussels sprouts.
7. Differences in susceptibility to attack by Brevicoryne brassicae (L.) on brussels sprouts.
8. The susceptibility of verieties of carrot to attack by the aphid, Cavariella aegopodii (Scop.).
9. Resistance of rape (Brassica napus) to attack by the cabbage aphid ( Brevicoryne brassicae L.).
10. The colonization by Cavariella aegopodii Scop, of carrot plants of different sizes.
11. Effect of the timing of insecticide applications on infestation by Cavariella aegopodii Scop, on carrots.
12. Studies on the aphid, Cavariella aegopodii Scop: On secondary hosts other than carrot.
13. Studies on the aphid, Cavariella aegopodii Scop.
14. Rational control of vegetable crop pests.
15. VARIETAL RESISTANCE OF LETTUCE TO ATTACK BY THE LETTUCE ROOT APHID, PEMPHIGUS BURSARIUS (L.).
16. THE USE OF ENDRIN AND OTHER INSECTICIDES AGAINST LETTUCE ROOT APHID, PEMPHIGUS BURSARIUS L.
17. THE SURVIVAL IN SOIL OF APTERAE OF THE LETTUCE ROOT APHID, PEMPHIGUS BURSARIUS (L.).
18. THE EFFECT OF TEMPERATURE ON REPRODUCTION BY THE ALATAE OF PEMPHIGUS BURSARIUS (L.).
19. THE BIOLOGY OF LETTUCE ROOT APHID.
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