I like to view parsley raise with it ’s voluptuous , green leaves . But once I had the problem that the leaf were turning white . I wanted to know what was causing this issue and how I could fix it .
Your parsley leafage are turning white because powdery mildew has attacked the plant life . This is a fungous transmission that leaves white-hot spots on the flora . you could employ milk to get disembarrass of powdery mold .
I ’ve written all of my inquiry in this post so you may find oneself it useful if your Petroselinum crispum industrial plant are facing the same problem .

Ants farming aphids on my pepper plants
1. It May Be Due to Fungi
One causal agency may be powdery mildew , a fungal disease likely to pass off in garden with high humidness , low-pitched land moisture , overcrowding , excessive shadowiness , or low air circulation .
This affliction begin by showing up on vernal leave as blister . The leaves then curl up afterward . Some reflexion depend like talcum pulverization in alter sunglasses from white to grey . If seriously infected , a plant ’s unseasoned leaves will drop off .
2. It May Be Due to Bacteria
Bacterial leaf spot , get by microscopical single - celled organisms , is one intellect for ashen spots on parsley leaves . This status manifests itself in dissimilar way . In serious cases , the leaf not only discolor , but they also buy the farm . Spots appear on top of , underneath , or on the tips of leaves .
Leaf spot bacterium love wet , cool surround . They quickly spread to industrial plant through infect seeds , plant life debris in soil , from being splatter onto leaves by rain or overhead irrigation , or through farming equipment and people move through the wet plants .
in high spirits humidness and mild temperature contribute to spore maturation , thereby increase the risk of infection . Other possible sources of infection include nearby plant life .

Spray bottle I use to water or spray neem oil
3. Insects May Be the Culprits
wanderer mites , aphids , or leaf miners produce white-hot spots on leaves . White webs on parsley leaves may be the employment ofspider mite .
blanched spots that turn into holes may be done bycaterpillars . yellowish , squiggly lines or blotches are made by the larvae ofleaf miners(the most common are fatal flies ) .
Insect infestation is common in parsley , but should not be cut . Otherwise , the plant life ca n’t be reap for food . in the main , the fastest way to check insect infestation is to use pesticides . If you ’re worried about the negative effects of pesticide , useorganickinds .
One instinctive way of killing leaf miners is to use insecticidalneem oil , which break up their natural life Hz . Another is to liberate “ skilful bug ” like wasps called “ Diglyphus isaea ” into your crop . you could buy these leafminer natural enemies from baby’s room .
4. It May Be a Soil Problem
The ashen bit may simply be a land deficiency or want of wet , especially if the plant is in a pot . Take the plant out of its lot with all the roots intact .
toss out the older soil . Replant the parsley in a unlike tummy with raw soil or in a garden . It will find its wellness within two to four weeks .
5. The Container Isn’t Big Enough
Wait until you see some new folio growth before removing all affected leaves and stems . If there are novel leaves , replant this part in a bigger container with new grime andslow - release fertilizer .
One gardener recommends one Imperial gallon or 3/4 gallon container forparsley , which likes moist but well - drain dirt . Ensure the dirt has a pH ( potential of Hydrogen ) * near six .
6. The Ambient Temperature Is Too Cold
If the ambient aviation temperature around your parsleyplant is too stale , the roots may not be able to absorb nutrients , peculiarly iron . practice an atmospheric thermometer to monitor the temperature of your plants .
Make regular inspection . If potential , move outdoor plant temporarily indoors , put them in a greenhouse , or build temporary shelters to regularize the temperature .
7. They Need Harvesting
It is potential that your flora ’s leaves are just dying a rude destruction . This is plausibly the case if the white - tipped leaves are mainly the out , older leaves .
To solve this , use your parsley more frequently , but harvest the oldest leaves first — those fall from outside the rosette .
Regular harvest home will also downplay the occurrent of flawed oryellowing leavesand bring on new greener , healthier ones .
8. They Need Fertilizing
Your plant may just need fertiliser . Do a soil test before next saltation , especially if you have n’t done one in a mates of class . The test will reveal the pretermit nutrients . Add them as needed .
The testimonial is a Pisces the Fishes / kelp emulsion . If the grease is acidulent , it may miss iron . you could add up Ironite industrial plant fertilizer .
You may also need to softly mulch some compost around your Petroselinum crispum and turn it into the topsoil . Water well , and you should notice a divergence in Modern growth .
9. They Have Windburn or Sun Scorch
Overexposure towindor sun may not affect Petroselinum crispum ’s lineament for culinary use , but its aesthetics as a garnish may stick out — unless you ’re go away for the avant - garde .
The wind of the outmost leaf are the most susceptible . Sunscald look like discolorize - out patches around leaves . It will not obliterate leaves , but prolonged natural event may stimulate leaves to flatten .
Wind / sunburn is not specific to Petroselinum crispum and is normal for many industrial plant , so it should not be a causal agent for concern , though they do price plant cells . To protect parsley plants , place some wooden panel around them to immobilize most of the elements .
10. They May Be Suffocating
determine if nearby plants are affecting your parsley . See if weeds are crowd it . Remove the locoweed and relocate the offending plants . Then prune your parsley to boost it to grow healthier leaves .
11. They Are Getting Old and Bitter
TheNational Gardening Associationexplains that it ’s normal for the gloss of honest-to-goodness leaves to fade , especially those from second - yr plants . It ’s part of their ripening process . The plants ’ flower , set seed , then die .
The leaves of a stressed or second - year plant may taste bitter . This stress can come from dry out out soil , excess heat , filth lack in nutrients , or a compounding of these .
12. They Are Suffering From Chlorosis
If the summit , stems , or branches of your Petroselinum crispum plant life have turned all white , it may be suffering fromchlorosis . This means it is not bring forth enoughchlorophyllto appear green .
Chlorophyll utilise sunlight to make food for plants , so if your plant life does n’t have enough of it , then it may be hungry .
Causes of Chlorosis
How to Treat Parsley Leaves Turning White
Fact Checked , Written , and Published by Kevin Rodrigues
Kevin is the father of Gardening Mentor , a website that shoot for to teach masses to grow their own food for thought in a circumscribed infinite . As a self - taught gardener , Kevin has spent several years growing plant and creating gardening subject on the website . He is certified in Home Horticulture and Organic Gardening from Oregon State University . He has a Post Graduate Diploma in Horticulture and Landscape Gardening from Mumbai University . take more