The flight ability of Oedaleus asiaticus and its relationship to population density

The flying ability of Oedaleus asiaticus which is a dominant locust species and its relationship with population density were studied in laboratory. The results of 12hour continuous suspension flying test showed that O.asiaticus had relatively strong highdensity population flying abilitythe farthest accumulated flight distance was up to 15 km, accumulated flight time was more than 2 h. Different dayold adult individuals show significant difference, which 4 dayold adults after eclosion exhibited weaker flying ability, while the 13 dayold ones possessed the strongest flying ability, 20 dayold showed a decreasing trend. Male and female individuals had no significant difference (P0.05). Lowdensity populations of adults did not have the long distance flying ability, each dayold adult accumulated flying distance and flying time were significantly shorter than those of same dayold highdensity population individuals (P0.01).