To provide for the registration of nurseries and the control and destruction of plants, insects and plant diseases at nurseries; the control and destruction in certain proclaimed areas of exotic animals and plants infected with insects or plant diseases; the control of the importation into the Republic of plants, insects, plant diseases, honey bees, honey and exotic animals; the payment of compensation in respect of the destruction of plants, honey bees and exotic animals and the eradication of plant diseases and insects; and the eradication of locusts; to define the powers of inspectors; and to provide for incidental matters.