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Common Plant Pests & their Control

May 16, 2015
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Common Plant Pests & their Control

Pests cause diseases in plants and enormous losses to the potential agricultural production. There are number of pests which make a farmer’s life miserable .It is not possible to mention all of them, hence only some of the most common, frequent, and troublesome are listed.


They are the most persistent one. Green fly generally attacks softer vegetables, while Black fly is the enemy of the orchard.


Control & Treatment: Use tobacco steeped in water. Soft soap dissolved in water is also a cheap and effective remedy. Ladybugs or ladybirds are natural predators to aphids; hence releasing them into your garden is also a better idea.


Read Also : How to control Aphids on plants.


Bean Aphids (Bean plant louse or Black Dolphin) –  

The pupa is black in color with grayish white mottlings, while the female is deep greenish. This insect commonly attacks the young beans.

Control & Treatment: Cut the infected parts (which are mostly young shoot and tops) and burn them. If condition persists, spray a solution of soap and quassia over the beans.


Woolly Aphids

They increase very rapidly, and in not controlled on time, can ruin the whole orchard.

Control & Treatment: If woolly spots are detected, small tainted boughs must be pruned away. Using of soap soft can work.


Cabbage root fly

They attack calabrese, broccoli, turnips, Swedes, etc. Seedlings and transplants are most likely to be attacked.

Control & Treatment: One homemade technique is to make small discs of cardboards and cut a straight line from the outer edge to the center. Insert this disc as a collar around each plant.


Carrot fly

The shining larvae live upon the roots of carrot and causes rot.

Control & Treatment: Soak the garden with a mixture of wood ashes and water once a week.


Celery fly

Spots, deficient of leaf green in your plants, are an indication of attacks of celery fly.

Control & Treatment: Dust new plants of celery with soot, which prevents the fly to lay its egg. Cut and burn the damaged portion of the leaves, if already infected. Frequent rough digging also helps in controlling this pest, as the pest is exposed to birds.


Onion Fly

The scientific name of this pest is Phorbia cepetorum and they attack onion. The result is discoloration of the leaves.

Control & Treatment: Powdered lime well mixed with water (in a ratio of 2:1) may be sown evenly over the onion bed and raked.


Turnip Fly

One of the most troublesome pest, because of its high rate of reproduction.

Control & Treatment: The sprinkling of slaked lime over the seedlings is a safe and an efficient remedy, although, it does not work every time.


Root knot Eelworm

One of the worst pests for cucumbers. Each worm is about 1/75th of an inch and is coiled up inside a transparent egg.

Control & Treatment: Remove all infected plants, as soon as infection is identified. Expose the soil to the birds by digging it well. Mix fresh compost, added with lime and soot, into the soil.


Mealy bug

The name is due to its mealy, floury or cottony appearance. Grape vines are most susceptible.

Control & Treatment: Wash the plants with a brush and soft soap.


Read Also : How to control Mealy bugs on plants.




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