The Pro Farmer

Late blight of tomato treatment

Also called Phytophthora infestans, is a dangerous fungus which attacks mainly tomato and potato.

symptom of late blight to a tomato leaf

It spreads out very fast.

Dried leaves damage by late blight

Attacking leaves, fruits and stems.

Damage of late blight to tomato fruits

Appears when humidity is high.                              

First symptoms are white powder and black veins on the lower side of the leaves.

First sign to an appearance of late blight

If you are using head irrigation with sprinklers,

you are highly increasing the chance of the appearance and spread out of this fungus.

If you can, it is better to use drip irrigation.

It is recommended to use at least 3 kinds of different pesticides,

and alternate between them every 4 days, in order to overcome pest’s resistance,

and completely exterminate them.

For further information about this, read this post , and this post also.

There are 2 ways to eliminate late blight: Chemical, and organic.

Chemical:

Active ingredients:

Best pesticides for Late blight,

Metalaxyl/Mefenoxam
Mancozeb
Cymoxanil
Propamocarb
Iprovalicarb
Dimethomorph
Famoxadone
Fenamidone

Organic:

Copper sulfate –

Is an inorganic compound that combines sulfur with copper. It can kill bacteria, algae, snails, and fungi. It controls fungal diseases by damaging enzymes and proteins critical to fungal growth. It has been registered for use as pesticide product in the United States since 1956.


Hydrogen peroxide –

Well known as an ingredient in disinfectant products, it’s now also approved for controlling microbial pests, on crops growing indoors and outdoors, and on certain crops after harvest. This active ingredient prevents, and controls bacteria, and fungi by destroying essential components of the cells.


Neem oil –

A naturally occurring pesticide found in seeds from the neem tree.                             Azadirachtin is the most active component here.                                                                                   It reduces insect feeding and acts as a repellent.    It also interferes with insect hormone systems, making it harder for insects to grow and lay eggs.

error
fb-share-icon

Leave a Comment

Your email address will not be published.

error

Enjoy this blog? Please spread the word :)

WhatsApp
Shopping Cart