Study on Forecast of Occurrence Date of Spodoptera litura by Developmental Duration Method;

This paper reports the hatching way, hatching time, hatching duration, daily hatching amount and hatchability of eggs of white wax insects in China, and hatching female eggs at earlier stage than male eggs is its notable characteristics.

Effects of 8 plant species on the feeding,fecundity and duration of Hylobitelus xiaoi adults were evaluated at a constant temperature of 25 ℃ and relative humidities(RH) of 90%.

The results showed that,photoperiod had remarkable influece on the developmental periods of larvae at 20℃,but not at 25℃ and 30℃.

The effects of photoperiod and temperature on larval developmental periods of Papilio memnon were very remarkable.

Effects of methidathion resistance obtaining on developmental duration and reproductive capacity of the predacious mite Amblyseius womersleyi Schicha (Acari:Phytoseiidae);

Under constant temperature and humidity conditions,fecundity,developmental duration and survival rate were compared between Trichogramma dendrolimi infected and uninfected with Wolbachia using the staining method by Safranin in egg of Antheraea pernyi.

The female developmental duration of Tianjin population was significantly greater than other populations,and there were not .

Forest Culture and Its Development during Chinese Different Historical Periods;

Evaluation of the channels in the middle reach of the Yangtze River and intensification of floods in its historical period;

Statistical properties analysis of flood and drought calamities in historical period of Hubei Province;

Exporing Ancient China Civilization and Historical Stages of Yi Nationality from Ancient Records in Han and Yi Languages;