Plant health protection is the sciense that studies all the diseases and damages that suffers the plants, the factors that their causing and ways of repression. Factors that their causing diseases and damages in the plants are:
1)Not parasitic: territorial, climatic, atmospheric constitutions, wounds.
2)Parasitic plants.
3)Animal parasitic: filamentouss,clams,arthropoda,chordota,mushrooms,bacteria.
4)Viruses.
5)Weeds.
Theese factors are examined by 3 sectors:
1)Diseases that are caused by not parasitic factors, by plant parasitic and by viruses are examined by the sector of Phytophathology.
2)Damages from animal parasitic are examined by the sector of Agricultural zoology and Entomology.
3)Damages of Weeds are examined by the Study and Ways of protection of Weeds.