Types of Ladder Jack Bracket Devices. 1  There are different types of Ladder Jack bracket. 2  devices. These include: 3  1. Side Rail Ladder Jack â. (Over the rail and rung) 4  This style of jack is installed onto the railing and. rungs of a pair of extension, or single, ladders. 5  The planking is then slid into position along the.
What is a systemic insecticide? If youâve gardened for a while, chances are that youâve heard the term systemic insecticide. When applied to pesticides, the term systemic means that the chemical is soluble enough in water that it can be absorbed by a plant and moved around in its tissues.
Definition - What does Broad Spectrum Pesticide mean? A broad-spectrum pesticide is a powerful pesticide that targets entire groups or species of organisms that are commonly harmful to plants. Another name for a broad-spectrum pesticide is a non-selective pesticide. Unlike narrow-spectrum pesticides, broad-spectrum pesticides can target large amounts of crops at the same time, that might be plagued by more than one type of pest, and is therefore commonly used by farmers who need a fast-acting, guaranteed solution to an unknown problem.