classification and the causes of the football grass diseases

meaning, classification and the causes of the football grass diseases? A: lawn disease lawn grass in the growth and development process, if the environmental conditions are not suitable or victims of pest infestation, their metabolism disruption or destruction caused by the change in the internal physiological function or external morphology, growth and development are obvious obstacles, and even lead to partial or whole plant death, a phenomenon known as lawn diseases. Can be divided into infectious diseases and non-infectious diseases. The former is mainly caused by fungi, bacteria, viruses and other pathogens, which is mainly caused due to inappropriate environmental factors such as light, temperature, water, nutrition, air.

What football grass noninfectious etiology of the disease? A: (1) temperature, moisture exceeds the plant tolerance limits or light stimulus ② lack of essential the nutrient the ③ inorganic and organic toxins ④ soil hypoxia ⑤ the atmospheric pollution the ⑥ soil acidity or alkalinity excessive ⑦ mechanical damage ⑧ genetic defects

The common local lawn pests, weeds what types? How the extent of the harm?

What is football grass weed? A: lawn weeds are all plants in addition to the lawn outside the artificial conscious planted turfgrass. Wide range of lawn weeds and annual grasses, perennial grasses and broadleaf weeds in lawn weeds into the basis for prevention purposes.

The brief lawn pests, weeds comprehensive prevention and control principles and methods.

Brief football grass disease occurrence.

Descriptions football grass grass disease type and its influencing factors. The turfgrass disease can be divided according to the different nature of the two categories: physiological diseases, and infectious diseases. Former major influencing factors including nutrition, moisture, temperature, light, air, soil pH, phytotoxicity. (2) the impact of the latter factors including fungi, bacteria, phytoplasmas, viruses.

OVERVIEW characteristics of weeds. A: 1) strong growth dense bushes less susceptible to trim; 2) solid and strong; 3) seeds and underground stems, stolons, corms, tubers and other breed to breed and spread rapidly; 4) many weed leaf table is the waxy layer exclusion of herbicides capability.