April, 1907 



THE GARDEN MAGAZINE 

 The Flower Garden and Greenhouse — Continued 



145 



NAME OF PLANT 



Carnation 



Chrysan- 

 themum 



Dahlia 



Hollyhock 

 Morning-glory 



Rose 



Sweet Pea 

 Violet 



Rust 



Aphis 



Leaf spot 



Tarnished plant bu 



Rust 



Tortoise beetle .... 

 Leaf cutter 



Aphis 



Leaf-hopper 



Rose chafer* 



Scale 



Slug 



Black spot 



Mildew 



Aphis 



Aphis 



Cutworm 



Leaf tyer* 



Sawfly 



Blight or spot .... 



DESCRIPTION 



Reddish brown powder from blisters on 



leaves and stems 



Dark brown plant lice on buds 



Small dark brown spots on foliage which 

 grow larger 



Very active small brown bug which stings 

 bud causing discoloring and malform- 

 ation 



Yellowish or brownish dusty spots on 

 leaves 



See under sweet potato 



Yellowish green caterpillar three-quarters 

 inch long with black spots 



See under carnation 



Small elongated green bug which jumps 

 quickly. Sucks foliage ." 



Brown beetle eating flowers 



See raspberry 



Slug-like larvae eating surface of leaves. . 



Black spots on upper sides of leaves 



Edges of leaves curl. White powdery 

 growth on leaves 



See under pea 



Brownish plant lice on crown, stems and 

 under leaves 



Eating flowers and foliage 



Small green caterpillar eating out patches 

 of leaf surface 



Dull olive or slate-colored larvae two-fifths 

 of an inch long eating surface of leaf .... 



Whitish round spots with darker rings on 

 leaves 



TIME OF 

 APPEARING 



September . . 



September . . 



August, Sep- 

 tember 



July, August . 



May, June . . 



June, July. . 



J«iy 



May, June 



June to August 

 June 



May, June 



TREATMENT 



Spray: copper sulphate (xiii) every week or 



ten days. 

 Spray: whale oil soap (vii) or tobacco (x. b.). 



Fumigate: tobacco (x. c). 

 Spray: ammoniacal copper carbonate (xv) 



every ten days to two weeks. 

 Hand pick in early morning, spray young bugs 

 kerosene emulsion (vi). 



Spray: Bordeaux mixture (xix) in spring when 

 foliage expands and at frequent intervals. 



Spray: arsenate of lead (ii). 



Spray: kerosene emulsion (vi) or tobacco (x. b.). 

 Hand pick. Spray: arsenate of lead (ii). 



Spray: arsenate of lead (ii) when it appears. 



Dust with air slaked lime. 

 Spray: ammoniacal copper carbonate (xv) once 



a week. 

 Spray: sulphur (ix). Put paste of sulphur and 



lime on heating pipes. 



Spray: whale oil soap (vii) or tobacco (x. b.) 



Poison: arsenite (iv). Do not use soil from 



fresh sod. 

 Spray: arsenate of lead (ii). Fumigate 



tobacco (x. c). 

 Spray: tobacco (x. 6.) or when not blooming 



arsenate of lead (ii). 

 Spray: Bordeaux mixture (xix) repeat every ten 



days, or when in bloom ammoniacal copper 



carbonate (xv). Destroy affected leaves. 





Potato beetle 



Red-humped caterpillar 



Squash bug 



♦Insects marked with an asterisk (*) attack many greenhouse and flowering plants other than those mentioned. 



Up-toDate Remedies for Insect and Fungus Pests 



(The Roman numerals connect the formulas with the instructions given under "Treatment" on the foregoing tables) 



Insecticides and applied with a bellows, perforated can, much better than Paris green. A white 



. . or powder gun. paste. Ordinarily use four ounces to five 



Insecticides form two classes: (i) poisons when adding a dry arsenite to water for gallons of watei : but may be used one 



which kill by being eaten, such as Pans S p rav i ng) fi rst m i x it in a little water to form pound to five gallons without injury to 



green and arsemtes used for insects which a pa s te ; then dilute, most foliage. Costs fifteen to twenty-five 



chew their food, such as caterpillars, beetles, cents per pound 



grasshoppers, etc., and (2) contact insec- I- paris green 



ticides (oils or dusts), which kill the insect / a \ Q ne ounce f Paris green and two ni - Resin-lime mixture 



by penetrating the skin or clogging the ounces freshly slaked stone lime to ten gal- Pulverized resin 5 pounds, 



breathing pores, used for insects which suck j ons OI wa t er . May be combined with Concentrated lye 1 pound, 



the food through a small beak, and so are Bordeaux mixture, adding to the latter at Fish oil or any cheap animal oil ex- 



not affected by poisons applied to the surface same rate as to water and omitting the w 2' I gallons 



of the foliage, such as plant lice, scale ljme Keep well st i rre d while spraying. 



insects, etc. Bordeaux mixture sometimes c osts twen ty to twenty-five cents per pound. Place oil, resin, and a gallon of water in 

 acts as a repellent to sucking insects. ( b ) Green arsenoid, paragrene, Scheele's an iron kettle and heat until resin is soft- 

 green. These are substitutes for Paris green ened; add lye solution made as for hard 

 FOR BITING INSECTS of nearly the same chemical composition. soap; stir thoroughly; add remainder 



They are fully as effective, as safe, cheaper of water and boil about two hours, or 



Most of the insecticide poisons are com- anc i are lighter than Paris green and so until the mixture will unite with cold 



pounds of arsenic. Remember that they w jii re main suspended in water much better, water, making a clear, amber-colored liquid, 



are all dangerous to human life. Keep them The above brands are trade names and have If the mixture has boiled away too much, 



well labeled and locked up. been carefully tested. Do not use every add sufficient boiling water to make five 



Unless otherwise directed, dry arsenites new arsenite claimed to be as good as Paris gallons, 

 may be either sprayed or dusted. Dusting green. Use in same manner as Paris For use, dilute one gallon of this stock 

 is often more convenient on low growing green. solution with sixteen gallons of water (or 

 plants, but dust does not stick as well as may be diluted with Bordeaux mixture), 

 liquid spray. Dust only in early morning n - arsenate of lead add three g a ji ons f ^^ f ii me) or white- 

 while dew is on. When used dry, arsenites Rarely burns the most delicate foliage, wash, and one fourth pound Paris green or 

 are usually diluted with flour or land plaster Remains in suspension and adheres to foliage other arsenite. 



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