Born-Digital or AnalogAnalogTranscriptTrees. Elm Tiny wasps which lay eggs in larva of disease-carrying beetles to be weapon against Dutch Elm disease. Post My 29, 1973 p.3 Another group of elm trees being removed from Colorado State Capitol grounds. RMN Ag 28, 1973 p.18 Spray saving many Denver elms from Dutch elm disease. Post F 1.7, 1974 p.41 Residents to get $20 rebate for planting curbside trees. Post Mr 23, 1975 p.24 Dutch elm diseasc on the decline in Deriver. Post Ag 17, 1975 p.?4CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
