INSECTICIDAL • DICCIONARIO INGLES.COM • Definition of Insecticidal

... suffice, repeating if the insects continue on the plants. In the preparation of the spray a pound of fresh lime to each pound of the arsenical should be added; or, better yet, Bordeaux mixture should be employed as a diluent instead of water. This mixture has some insecticidal value, is a most valuable fungicide, and is also a powerful deterrent of flea-beetle attack, acting to a less degree against other insects which are apt to be found on the tomato. In applying any spray a sprayer costing not less than $7 is ...

— Tomato Culture: A Practical Treatise on the Tomato • William Warner Tracy