smoke blade exhibiting blanched spots bespeak a fungous disease called powdery mildew . Powdery mildew is the most far-flung disease that infects plants , fit in to Colorado State University . However , nurseryman can have peace of mind knowing that the fungal spores that cause lawn powdery mildew will not infect your other plants .

Powdery Mildew

Powdery mildew typically infects lawn during July through September , allot to the University of Rhode Island . Fungal spores rapidly germinate in a few time of day when temperature are cool and lawn is moist . Furthermore , powdery mould fungal spore are almost always present in the lawn , but may not be infect grass . Spores overwinter in dead grass debris and spread when the weather favors the disease . Because the disease can taint grass in two minute , gardeners can see severe powdery mildew symptoms in a week , report the University of Rhode Island .

Identification

Upon confining examination , gardener can see tiny white spot on their dope . Spots may come out to wait like powder . This pulverization is a combination of mycelium and fungal spore . Mycelium is the branching part of the fungal spore . The disease sucks up the nutrient from the surface of the grass blades . sess blades become malnourished and turn over yellow from the result of the lack of nutrients . Also , terrible powdery mildew infections cause small to gravid areas of the lawn to die out .

Treating Powdery Mildew in the Shade

Grass growing in the shade is the most susceptible to contracting powdery mould . Shady surround favor the germination and spread of powdery mildew fungal spore . gardener can control powdery mold by cutting back overhang branches in these orbit . Sir Herbert Beerbohm Tree that put too much nicety can be bump off . Also , planting grass that stick out shade will reduce the chances of powdery mold damaging the lawn . Healthy pot bear moderate infections of powdery mildew . tincture liberal grass character include St. Augustine , zoysia , meadow fescue and supina bluegrass .

Cultural Management Strategies

Avoid overfertilizing your lawn to prevent stressing out the grass . Stressed out grass give way out when infected with powdery mildew . Avoid using more than 1 lb . of slow release fertilizer per 1,000 square groundwork at one time . Using too much nitrogen can bite grass and weaken forage blade . what is more , reduce your irrigation if you give your lawn more than 1 column inch of water a week . Typically , lawns only need more than one column inch of piss each week to keep them from drying out .

…