Insecticide is sprayed onto death watch beetles making holes in Nelson's ship "Victory".
Item title reads - Invaders on the "Victory".
The camera pans down Nelson's flagship "Victory". Aerial shot of the deck. A man walks down to deck and sprays D.D.T. (chemical insecticide) into a hole in the wood. C/U's of holes in the wood made by death watch beetle. He collects the beetles in the chrysalis stage and taps them out onto wood.