These tip will aid you stop other blight and later blight from ruin your love apple harvest .

Tomato blight is a common problem that can quickly reduce plants to pitiful , scraggly messes . This guide provides all the details for identifying former and late tomato blight . Use these tips to protect your plant from thesecommon tomato diseasesso you’re able to enjoy a delectable harvest time .

Tomasz Klejdysz / Getty Images

tomato plant infected with late blight

Credit:Tomasz Klejdysz / Getty Images

What Is Tomato Blight?

Tomato blight is a term used to relate to two commonleaf spot diseasesthat will take a price on yourtomato harvestbefore you know it . There are two clear-cut types of tomato blight : former blight and late blight . Both early blight and late blight affect a plant likewise , but bar strategies vary based on the character of blight . A tomato plant can be infected with both former blight and belated blight at the same time .

How to Identify Blight in Tomatoes

When you notice blight in tomatoes early in its development , it is relatively soft to key out whether it is former or late blight .

When distinguishing between early blight and late blight , remember that early blight infections begin at the territory level and move up the plant . Late blight starts in the canopy and moves down to the dirt level .

Early Tomato Blight Symptoms

Early tomato blight first appear on the plant ’s lower leave . It open fromfungal spore in the soilthat splash onto the plant life ’s lower leaves . The fungus grow more or less circular , grim brown spots on prow and leaves at the Qaeda of a plant . Multiple spots on a individual leafage eventually commingle , causing the full leaf to turn brown and shine off the plant .

In time , the fungus moves up the flora until the mediate part ’s leaves and , in conclusion , the leaf in the canopy are affect .   Tomato plants in the later stages of an early blight infection have leafless lower stems and infected leaves in the upper canopy .

Late Tomato Blight Symptoms

do by a fungus - like microorganism calledPhytophthora , tardy blight spreads by current of air and rain . This tomato plant disease tend to start up in the canopy of the plant and then slow spread downward . The first symptoms of late blight appear as brown or tan dapple on the upper folio of tomato plants . The spots often have a calorie-free green or yellow ring around the irregular out bound . As the disease progresses , the lesion turn together on a exclusive leafage , and the intact folio turns brown , shrivels , and dies .

Late blight can also attack tomato yield . Infected fruitdevelops dark-brown daub that become leatherlike . Rot lurks under the outer masking , so you probably do n’t require to eat infected fruit .

Controlling Early Tomato Blight

Early blight is a tricky fungal disease that has the frustrating power to enshroud in soil and plant debris for years , wreaking havoc on tomato , eggplant , pepper , andpotato plants . Once symptoms of early blight appear , control is nearly impossible . Tomato plants do n’t typically recover from an early blight contagion . Slow the spread of the disease by pruning tomato foliage to amend airflow . Thin out the whole flora by removing one - third or so of the leafage . yield production will probably be thin withextensive pruning .

Fungicides label for enjoyment on veg plants can be efficacious against early love apple blight if used diligently from the beginning of infection until the oddment of the uprise season . Neem oil is an constitutional control pick , but like conventional fungicides , it must be applied at the beginning of an infection and on a regular basis until icing . There are no early blight - resistive love apple mixed bag , but several varieties show good tolerance to the disease . opt a disease - liberal tomato plant variety when potential .

Controlling Late Tomato Blight

The same fungus - like microbe that get late tomato blight today was responsible for the devastating Irish potato famine of the 1840s . later blight is most common during foresightful period of cool , cloudy , wet weather when current of air and rain go around the spore from garden to garden and plant to plant . The tiny spore are known to travel 10 mile or more , starting unexampled disease cps wherever they shore .

Once late tomato blight occurs in your garden , it can not be decimate . However , it can be middling ensure with weekly fungicide atomizer . Products take copper or chlorothalonil are the good products for controlling late blight . To obviate late blight , works love apple miscellany that have recent blight resistance .

Fungicide spray , like other chemical controls , can harmbeneficial wildlifein the outgrowth of controlling industrial plant diseases .

early blight alternaria plant disease on tomato plant

Credit: Peter Krumhardt

Tips for Preventing Tomato Blight

1. Plant resistant or disease-tolerant varieties.

The single most effectual room to battle both early blight and former blight is toplant tomato varietiesthat endure or are resistive to these disease .   Cultivars broad of former blight include ‘ Mountain legerdemain ’ , ‘ renown ’ , ‘ Juliet ’ , and ‘ Rutgers ’ . Late blight - resistant cultivars let in ‘ Mountain Gem ’ , ‘ Plum Regal ’ , ‘ Mountain deception ’ , and ‘ Red Pear ’ .

2. Grow plants on stakes or trellises.

The foliage oftomato plants supported by stakesor treillage dries much quicker than plants give up to ramble over the ground . tight dry clock time limits the spread of fungal disease . Also , minimizing leaf - to - soil middleman can prevent disease broadcast in the case of early blight .

3. Add a layer of mulch.

A 2 - inch - thick level oforganic mulch , such as shredded wood mulchor weed - liberal grass clippings , create a physical barrier between early blight spores in the dirt and the tomato plant ’s leaves .

4. Remove infected leaves.

Limit disease spread by pruning infected leave as presently as you acknowledge them . Gather the infected leave and discard them in a plastered plastic bag .

5. Space plants adequately.

Plant your tomatoes 3 to 4 feet apart to promote good aura circulation . The goal is to help leafage dry out off as quickly as possible , which define disease spread .

6. Deliver water directly to the base of plants.

Water tomatoes with awater wand , recollective - neckwatering can , or drip hosiery to prevent splosh piddle onto the works ’s foliage . Yes , rain gets the leave-taking slopped from time to time , but minimise the amount of time water sits on the foliage reduces disease development and spread .

7. Focus on growing healthy plants.

Give yourtomato plants enough water , nutrients , and sunlight . Healthy , robust Lycopersicon esculentum plants are expert capable to do battle with former blight or late blight than tomato that are clamber and unaccented .

Frequently Asked Questions

While eating love apple yield from a plant infect with blight wo n’t harm you , it likely wo n’t be tasty .

Once a tomato plant has a blight , it ’s almost impossible to obviate it . However , if you are attentive with treatment measure , the tomato plant may still produce some yield .

No . In fact , Epsom saltmay hasten the spread of blight . It can clog the territory with magnesium , which prevents the plant from bugger off enough calcium . Do n’t add together it to your soil when planting tomato .

single tomato leaf with 3 dark spots of late blight disease

Credit: Scot Nelson

It is well to be safe than sorry . If possible , replace the soil and mulch used in the garden area where the tomato grew . At least relocate tomato plants to a different region of the garden .

Although you could eat fresh tomatoes from plant life impress by blight , do n’t freeze or can them if they show any signs of blight . To be good , do n’t freeze out or can them at all . Fighting blight weaken the tomato plant and pretend its chemistry , making the yield susceptible to possibly developing harmful bacterium when canned or frozen .