AGRICOLA -- Guide to Subject Indexing

No. 14, October 1987SUBJECT: Category Codes for Insect PestsModify your copy of the scope notes for the AGRICOLA Subject Category Codes asfollows: For codes F821 and L821:1. Delete this phrase: Biology of insect pests.2. Add this cross-reference: For aspects of the biology of insect pests, add L200through L700, as appropriate, and L001.For codes L200, L210, L300, L400, L500, L600, and L700:1. Add this cross-reference: For insect pests, add F821, F851, L821, L851, asappropriate.Effective immediately, adjust your indexing practice accordingly.No. 15, November 1987SUBJECT: Category Codes for WeedsModify your copy of the scope notes for the AGRICOLA Subject Category Codes asfollows:For code F900:1. Delete this phrase: Biology of weeds2. Delete these cross-references:o For: physiology and biochemistry of weeds, add F600o For: weed structure and morphology, add F4003. Substitute this cross-reference:o For aspects of the biology of weeds, add F200 through F700, asappropriateFor code F200, add this cross-reference:oFor weed genetics, add F900For code F300, add this cross-reference:28