Measures for the eradication of marine borer in Beaufort, United States. Chemist places small containers covered with cloths on a table. Marine borer on a wood. Wrecked marine pillars.
Measures for the eradication of marine borer at Edgewood Arsenal in Maryland. Man at the pier inspects the piling. The piling is destroyed completely by the marine borer. Man watches the wrecked wood. He cuts a part of the wood and watches it. He takes the marine borer 'Bankia Gouldi' in hand. The head of the pest. Man impregnates the marine pillars with toxic compounds. Another man helps him. The pillars are placed in an apparatus to impregnate them with toxic compounds. Man watches and compares both types of wood before and after intoxicating.
Measures for the eradication of marine borer in Maryland, United States. The anti fouling paint on the barnacle affects the accumulation of ship plates. U.S. destroyer 116 at harbor. Men stand near the ship. Marine borer grow on the ship. U.S. destroyer 116 at sea. Smoke arises from the stacks of the ship. Marine borer grow on the hub of the starboard propeller. Man watches a ship plate destroyed by the marine borer, painted with a normal paint. The Chemical Warfare Service makes an anti fouling paint to protect the pilings. The paint is applied on the ship plate and man watches the ship plate.
Boll Weevils ravage Cotton plants in southern United States. Chemical Warfare Service prepares poisonous compounds for the eradication of Boll Weevil. Chemists keep the poisonous compounds in small covered containers. Boll weevil on a Cotton plant. Men pick cotton bolls that are not destroyed by the Boll Weevil. African American man smiles and holds a stem with a small cotton bloom. Cotton square and cotton bloom attacked by the pest.
Stages of Weevil's development in United States. Weevil deposits its eggs into the boll of cotton plant. Cotton boll with the eggs on a table. First stage is the formation of larva. Pupa emerges out of larva. At the last stage, weevil emerges out of the pupa.
Weevils fed toxic compounds and examined during a laboratory test in United States. Weevils stored for the tests in the laboratory. Man takes the container out of the store. Men test the poisonous compounds on the Weevils in a field. Glasses on a table contains poisonous compound.
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