1. Deoxypodophyllotoxin have strong development inhibition armyworm.

2. Deoxypodophyllotoxin have strong development inhibition to armyworm.

3. The rate of parasiting to the oriental armyworm is seriously influenced by the day number of raining of April and of dewing from 11-25, March of last year.

4. Flight behavior of the oriental armyworm Mythimna separata(Walker) moth in airflow was studied systematically using wind tunnel and scanning entomological radar.

5. The dynamic trends of the amount of beet armyworm adults trapped by 2 trap systems with sex pheromone lures were basically consistent with that of by frequency trembler lamps.

6. The biological control progress of beet armyworm and the prospect were reviewed.

7. The beet armyworm, Spodoptera exigua (Hubner), is a polyphagous noctuid of worldwide importance that feeds on various agricultural crops, including vegetable, cotton and ornamental.

8. The mechanism and inducement of plant inducible resistance induced by the beet armyworm were introduced.

9. Characterization of a Microsporidium Isolated From Larvae of Beet Armyworm, Laphygma exigua H.

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10. Furthermore, the artificial diet described in this paper might be used as a substitute for the natural foods of the beet armyworm.

11. The experiment shows that photoperiod was an important environmental factor affecting armyworm development, reproduction and flight.

12. Using computer simulating technique and cohort conception, the simulation model of armyworm population dynamics under variable temperatures was built.

13. The structure and function of the internal reproductive organs of the armyworm moth especially the formation of spermatophore have been described in this paper.

14. The average and range of pupal weight of beet armyworm Spodoptera exigua (Hubner) fed on artificial diet mainly consisted of soybean, wheat and yeast were 97.

15. The roles of plant inducible resistance in biological control of the beet armyworm and the research exploring new resistant varieties of crops in future were also discussed.

16. Studies on the chitin synthesis pathway genes of the beet armyworm and their utilization.

17. The use of improved artificial silkworm diet is suggested as meridic diet for armyworm rearing, for its rearing effect in correspondence with imported diet F9219B and its low cost.

18. Bioassay results revealed that mixed insecticide Jiaqing exhibited a significant synergism against oriental armyworm, bean aphid and rice leafhopper, and its cotoxicity coefficient (CTC) was 179.

19. Radar observations indicated that the stratification occurred in the course of the Oriental armyworm migration. The moths headed southwest in autumn migration.