Cucumber plants may develop mold diseases , principally as a upshot of poor environmental conditions . Two diseases in particular presentation clean molding as symptom ; gardener should be able to distinguish between the two diseases to allow for proper disease management . infection occur in the spring and summertime months . If left untreated , they can affect the cucumbers themselves .

Diseases

Cucumber plant life can experience white mould disease and another disease , powdery mildew , that produces a white cast as part of its symptoms . All types of cucumber can contract white mold or powdery mildew . These disease can lame backyard gardeners and commercial growers alike .

Symptoms

Powdery mold first causes plant life leaves to snap off out in lily-livered splotches . As infections exasperate , the leave become cake in a fine blank mildew or mold .

bloodless mold disease also displays lily-white modeling ; this is more fluffy and appears under humid weather condition condition only . modest black Transportation appear within the downlike white-hot mold ; these are the hard resting body of the fungus that have ashen mold . stalk of infected cucumber plants can rot ; cucumbers can rot and twist watery . When cut open , infected yield may arrest the small-scale shameful fungal bodies . truthful lily-white mold exhibit no leaf symptoms .

Causes

Powdery mold occurs most often in wet or humid outpouring weather , when plants do not have sufficient line circulation , and the leaf remain damp or lactating for long periods of time .

White mold is have by a grunge borne fungus , Sclerotinia sclerotiorum . This fungus infects other cucurbits , tomatoes , lettuce and many other vegetables and garden plants . The fungus can pull round in the filth for five years and may exist for a couple of class without showing symptoms . coolheaded , wet atmospheric condition boost the spread of livid cast .

Control

White molding is a venial disease of cucumber plants , but it can deflower your crop . The fungus is exceedingly challenging to remove from the dirt once it take time lag . As of 2010 , no chemical substance control subsist for clean mold .

Gardeners can see for powdery mould by institute resistant types of cucumber vine and by treating infected crops with sulfur - based products .

Prevention

keep the occurrence of white mold or powdery mildew by giving plants enough urine , but not too much , and by keep abreast proper cucumber plant spacing road map ( which variegate by sort ) . Only piss cucumber plant when the soil becomes dry and crumbly to the touch . If your garden gets infected with blanched mould , plant immune crops ( like clavus ) in that spot for five years until all traces of the mold are gone .

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