الفهرس 
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Abstract
Soil sampling for micro- and macroarthropods in chiordane-treated and untreated check plots was done periodically during 1961 and 1962 in 6 sugarcane fields in Iberville Parish, Louisiana. Stand counts, crop yields and some data on root damage were obtained from all field plots. Soil fauna were identified and counted to estimate the abundance of populations, particularly of Collembola and some other groups known or suspected to be phytophagous. Greenhouse experiments with sugarcane growing in cans of soil were conducted to measure the effects of soil microarthropod populations on plant growth.
Acarina, represented by 14 families and Collembola, represented by 16 genera were the most abundant groups of arthropods encountered. Most Collembola occurred in greatest numbers during the spring, declined in summer and fall, and increased again in winter. A key was made for separating the genera of Collembola found.
Collembola and Acarina were more abundant in clayey than in loamy soils, while the distribution of Symphyla did not appear to be correlated with type of soil. Symphyla and Pauropoda were relatively scarce in the spring, but populations increased gradually to a peak in late summer and fall. Symphylella sp., the most common species of Symphyla encountered, probably has 1 generation per year which begins in the spring and reaches the adult stage in winter.