. Bulletin of the Department of Agriculture. Agriculture. FUMIGATION OF ORNAMENTAL GREENHOUSE PLANTS. 15 Table I.—Plants and insects fumigated with hydrocyanic-acid gas in green- houses—Continued. Name of plant. Coleus (Verschaffelti). Do Coleus (mixed) Coreopsis Cosmos Do Cotton Do Do Croton (mixed varieties). Do Do Do Cudrania javanensis Cudrania tricuspidata Cyclamen Do Do Cyphomandra sp Daffodil Do Deutzia gracilis Deutzia scabra Digitalis Do Dioscorea pentaphylla. Do Dracaena godseffiana. Dracaena indivisa Do Entelea palmata Erica sp Do Epiphyllum sp Eupatorium sp Do Do Ferns: i Adia
. Bulletin of the Department of Agriculture. Agriculture. FUMIGATION OF ORNAMENTAL GREENHOUSE PLANTS. 15 Table I.—Plants and insects fumigated with hydrocyanic-acid gas in green- houses—Continued. Name of plant. Coleus (Verschaffelti). Do Coleus (mixed) Coreopsis Cosmos Do Cotton Do Do Croton (mixed varieties). Do Do Do Cudrania javanensis Cudrania tricuspidata Cyclamen Do Do Cyphomandra sp Daffodil Do Deutzia gracilis Deutzia scabra Digitalis Do Dioscorea pentaphylla. Do Dracaena godseffiana. Dracaena indivisa Do Entelea palmata Erica sp Do Epiphyllum sp Eupatorium sp Do Do Ferns: i Adiantum Adiantum Birds nest Do Boston Do Holly Do Do Lastrea sp Do Nephrolepis scottii Nephrolepis Nephrolepis ivhilmanii. Do Polystichum sp Do Pterissy Ficus utilis Ficus a3 .2 3 T3 03 a . DT3 50 Infestation. Orthezia. .... .... Greenhouse white fly. Long scale. Aphids. Cottony scale Results of treatment. On plants. No ....do ....do ....do Tips Slight bm-ning No ....do ....do ....do ....do ....do ....do Slight burning ....do No ....do ....do Slight burning No Severe burn- ing of new foliage. No ....do ....do ....do ....do ....do ....do ....do ....do Slight burning No ....do ....do ....do ....do do Severe burn- ing of young foliage. No do do do do do do do do do do do do do do do do do Slight burn- ing of new growth. No On insects. 70 per cent killed. 80 per cent killed. 100 per cent killed. All stages except eggs and late pupae killed. 100 per cent killed. 100 per cent killed. All stages except killed. • Asparagus plumosus and A. sprengeri belong to the Lily family and are to be found under Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United S
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectagriculture, bookyear
