124 TRUCK FARMING 



unwelcome guests. This is best done by applying substances 

 known to be nauseous to them, by disguising the scent or smell 

 of the young plants, using harmless non-poisonous substances 

 such as powdered sulphur, or finely ground tobacco dust, etc. I 

 prefer to use in addition a combination of fungicides with poisons 

 added (such as Dry Bordeaux Mixture with Paris Green) there- 

 by being enabled to both prevent and annihilate insects and fungi 

 with the same applications. We have found in a practice of many 

 years, that the different forms of Bordeaux Mixture, both wet 

 and dry. are preferable for this purpose to any other remedy 

 exploited at the present day. By the addition of Paris Green to 

 this mixture, we obtain an insecticide and fungicide, which, be- 

 sides having the virtue of destroying both of these enemies, seems 

 to have the faculty of stimulating certain varieties of plants. 

 Whether this is purely imaginary, probably caused by the dark, 

 rich appearance produced by heavy applications of this fungicide, 

 or if it really has this stimulating effect, I am not entirely clear. 

 This I know, however, that such plants as tomatoes, egg plants, 

 peppers, or Irish potatoes, which have been regularly treated to 

 applications of this Bordeaux and Paris Green treatment, in- 

 variably have an appearance indicating thrift and rapid growth. 



Next in importance is a fungicide I would name Flowers of 

 Sulphur. This, when applied in the early stages of plant growth, 

 seems to give almost as beneficial results as Bordeaux Mixture. 

 Paris Green can also be mixed with this, and if it is first adul- 

 terated, to the extent of about one-half, with air-slacked lime 

 (the lime having the effect in this case of neutralizing the other- 

 wise caustic action of the Paris Green) it answers almost as well 

 as Bordeaux Mixture and is much cheaper. 



Foremost among useful poisonous insecticides stands arseuate 

 of lead. This form of arsenic will not dissolve in water and 

 therefore has no caustic action upon foliage. This insecticide 

 if properly prepared can be used upon any foliage without in- 

 jurious effects whatever. It mixes very readily with water ana 

 is held in suspension for a considerable length of time. It will 



