Size and lipolytic capacity of bovine adipocytes from subcutaneous and internal adipose tissue

Adipose tissue samples were taken from five dairy cows in early lactation. Various external and internal sites were chosen, and after isolation of the adipocytes, their size and lipolytic capacity were measured. It was found that cells from all the sites showed high lipolytic activity, although there was a four-fold difference between cells from perirenal fat and those from omental fat, which showed the highest activity. It was not possible to detect any relationship between diameter and lipolytic capacity of the adipocytes.     

Use of carbofuran for control of eastern white pine cone and seed insects

The major insects that destroy cones and seeds of eastern white pine, Pinus strobus L., were controlled with soil applications of the systematic insecticide carbofuran in orchards at Murphy and Morganton, NC, U.S.A. Carbofuran applied once a year at rates of 4.5, 9.0 or 13.5 g AI (active ingredient) per cm of diameter at breast height protected trees from the white pine cone beetle, Conophthorus coniperda (Schwarz), the leaffooted pine seed bug, Leptoglossus corculus (Say), the shieldbacked pine seed bug, Tetyra bipunctata (Herrich-Schäffer), and the white pine cone borer, Eucosma tocullionana Heinrich. Control was reflected by increased cone survival and increased yields of filled seeds per cone. Increasing the rate of application from 4.5 to 9.0 or 13.5 g generally improved control, but the improvement was not of statistical or practical significance. Carbofuran was ineffective against a seed chalcid, Megastigmus atedius (Walker). White pine clones varied in inherent susceptibility to insect attacks.