History of Postage Stamps The Post Office Department issued its first postage stamps on July 1, 1847. Previously, letters were taken to a Post Office, where the postmaster would note the postage in the upper right corner. The postage rate was based on the number of sheets in the letter and the distance it would travel.
General Information. Dimethoate is a systemic and contact organophosphorus insecticide registered for use in the U.S. in 1962 and used on several field grown agricultural crops (e.g., leaf greens, citrus, and melons), tree crops, and ornamentals.Residential and non-agricultural uses were cancelled in 2000.imethoate is absorbed from the gastrointestinal tract, the lungs, and through the skin. General population exposure to dimethoate or omethoate can occur by eating foods treated with dimethoate or by drinking water.
SPECIMEN LABEL Disclaimer: Always refer to the label on the product before using Helena or any other product. equipment, pest problem and stage of crop growth. Application of more or less than optimal quantity of water may result in decreased chemical performance, crop injury or illegal pesticide residues.o not apply within 15 days of harvest. Do not enter treated groves within 4 days of last application. Use of dimethoate is prohibited during any time of day in any given orchard from when that orchard has 10% open blooms until such time as there has been at least 75% petal fall on the north side of the trees.