Excerpt from Evaluating Diatomaceous Earth, Silica-Aerogel Dusts, and Malathion to Protect Stored Wheat From Insects Diatomaceous earth may be applied to stored grain for insect control according to label instructions approved by epa. Agricultural Marketing Service (ams) provides instructions to licensed grain inspectors for grading grain containing diatomaceous earth (under GR Instruction 918 4 Aux. 1, May 9, An applicant who has grain that contains or appears to contain diatomaceous earth and who wishes to have the grain graded may file a written ap plication with the grain inspector. If diatomaceous earth is then found, the grain will not be downgraded on the basis of the presence of an unknown or foreign substance. Malathion has an established tolerance of 8 parts per million when applied to stored wheat for insect control and may be used according to label instructions. Caution: Pesticides can be injurious to humans, domestic animals, beneficial insects, desirable plants, and fish or other Wildlife - ii they are not handled or applied properly. Use all pesticides selectively and carefully. Follow recommended prae tices for the disposal of surplus pesticides and pesticide containers. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.