base waste in citrus trees is a fungal infection do by the Phytophthora pathogen that is of course occurring in most soils . The infection will slow destroy the tree diagram by cause hapless increment , thin out fruit production and depleting stored energy . Phytophthora root rot is a serious disease that can broadcast to other plants when not ensure .

Identification

Citrus tree are susceptible to root rotting from the Phytophthora fungus . The fungus is present as Phytophthora citrophthora during nerveless temperature , when the roots have low resistance to contagion , and Phytophthora parasitica during warm temperatures , when the roots are actively growing .

Symptoms

Citrus trees infected with the Phytophthora fungus will show symptoms of light green or yellow leaves that fall from the tree . Phytophthora citrophthora will make the fruit to turn chocolate-brown and molder . Thin branches will begin to droop as the transmission increases in severity . A suspected infection should be analyze by a laboratory to verify the fungus present as the symptoms are similar to excess salt or water in the grime .

Cause

The Phytophthora fungus infect the root cortex and destroys the root . Root hogwash is commonly induce from an increment in grime moisture due to flooding or a poor drain soil that becomes saturated with water . The increment in water system get an increase in spore output . The fungus becomes mobile , which increases the risk of infection . An infection cause the lens cortex of the stringy roots to become soft and ring off the stela of the root . This damage prevents the flow of water and nutrients through the stem and into the tree .

Control

There is no treatment that will reverse wrong stimulate by a Phytophthora fungus infection . Fungicide applied to the soil sphere will forbid the spread of Phytophthora to other trees and plants . polish off and destroy septic tree once the production drops to a non - adequate level .

Prevention

A Phytophthora fungus contagion can be prevented by control soil moisture levels and not over watering wrapped tree trunks . Moisture builds up at the foot of tree diagram automobile trunk envelop with plastic barriers . Fire pismire around the tree diagram need to be controlled to prevent them from nest under the tree wrapper as they do damage to the body and increase the endangerment of infection . handle the soil with a fungicide prior to planting and implant tolerant rootstock to prevent disease . Apply fungicide to youthful trees or root - buncombe - susceptible trees to limit the chance of a Phytophthora infection .

References

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