Columbia subject headings:
Harvard subject headings:
Agricultural pests--Control--Congresses.
Growth (Plants)--Congresses.
Growth regulators--Congresses.
Insect pests--Control--Congresses
Insects--Growth--Congresses.
Natural pesticides--Congresses.
Pesticides--Congresses
Plant parasites--Control--Congresses.
Princeton subject headings:
Pesticides--Congresses.
Pests--Control--Congresses.