PRESIDENTIAL DECREE NOPRESIDENTIAL DECREE NO. 1433 June 10, 1978 PROMULGATING THE PLANT QUARANTINE LAWOF 1978, THEREBY REVISING AND CONSOLIDATING EXISTINGPLANTQUARANTINE LAWS TO FURTHER IMPROVEAND STRENGTHEN THE PLANT QUARANTINE SERVICE OF THEBUREAU OF PLANT INDUSTRY.. ..WHEREAS,economic losses due to injury on agricultural crops brought about by..plantpests have become increasingly significant; .. ..WHEREAS, the preventionof introduction, incursion, establishment and subsequent..spread of plant pestsby regulating the international and domestic movements of..plants and plantproducts, is considered more practical and economical than any..other method ofplant pest control; .. ..WHEREAS, modern means of transportation andhandling of imports and exports have..favored the expeditious and extensivemovements of plants and plant products,..thereby, increasing the risk of plantpest introduction and/or incursion; ..WHEREAS, plantquarantine is basically and essentially a preventive measure, it...