Whenever it appears to the District Magistrate that any area in his District is being invaded, or is in danger of an invasion, by locusts, ho may-
(i) Direct every occupier within any area in the district to carry out such measures as the District Magistrate may deem fit in order to eradicate and destroy the locusts and to prevent their spread or reappearance;
(ii) call upon any male person not below the age of 18 years resident in the area to render all possible assistance in carrying out the measures referred to in clause (i) for the destruction of locusts :
Provided that no person who is by virtue of old age or any physical disability incapable of rendering assistance or who lives at a distance of more than 5 miles from the place where his presence is required shall be called upon to render such assistance;
(iii) specify the area within which and the period during which the measures specified in clause (i) are to be carried out.