H. D. Catling

  • Citations Per Year
Learn More
Research on Korean citrus pests has received little attention in the past. This paper describes studies suggesting that an integrated control system is feasible. Population fluctuations of citrus insects were studied intensively in 1973 and 1974. In unsprayed trees a population outbreak ofPanonychus citri (Mc Gregor) in 1973 declined sharply following the(More)
Studies on deepwater rice in Bangladesh from 1977 to 1980 showed that 61–89% of the egg masses of the yellow rice borer,Scirpophaga incertulas (Walker), were attacked by hymenopterous parasites. Egg parasitism increased from 43–48% in broods 2–4 (May–August) to 64–88% in broods 5–6 (September–November). Parasitism was reduced in broods 4 and 5 in 1979(More)
  • 1