Pests Of Jatropha

Jatropha Curcas is gaining value commercially as the need of fossil fuels increases enormously and also Jatropha is an environmentally friendly energy plantation. Plantation of this plant is considered to be an exceptional fuel substitute and it is also really economical compared to other fuels. Recently, Jatropha is facing some trouble with insects and diseases. The insects are classified into 2 varieties: Pest that affect young plants and Pest that affect developed plants.

Young plant insects: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.

Agrotis ipsilon: It is frequently referred to as Cut worm. This bug affects the seedlings and young Jatropha plants. If the plant is affected by the cutworm, the stem gets cut nearer to the soil surface area and this will diminished the plant completely.

Control: This pest can be controlled by picking the larva found around the plants or by blending the bran, sawdust with insecticides.

Scarabaeid Beetle: This bug ruins the root of the young plant. Initially, the larva takes in the natural matters present in the soil and after that pertains to the root. The larva attack may eliminate the whole plant.

Control: The plant with excellent resistance power can conquer the insect. For heavy attack, insecticides with parts carbosulfan and carbofuran can be utilized to kill the pest.

Army worm: Spodoptera litura existence can be recognized by biting in the leaves. The severe infection might entirely kill the plants.

Control: Insecticides are utilized to manage the insects.

Grasshopper: This prevails insect discovered in numerous plants. Valanga nigricornis and Locusta migratoria widely assaults the plant. The bug frequently assaults the young plant.

Control: The insecticides utilized betacyfluthrin, cypermethrin, thiodicarb, MIPC, and fipronil.

Pest observed in fully grown plants:

Pest of Stem: Ostrinia furnacalis, Xyleborus spp.

Ostrinia furnacalis and Xyleborus: This insect damages the Jatropha stem and it is commonly seen in Indonesia. The stem assaulted by this insect typically fall down. The existence can be identified by the larva penetration hole at the stem.

Control: The Insecticide usually used to control this bug is carbofuran.

Pest of leaf: The common pests observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.

Leaf Caterpillar: This pest can eat all the leaves of the plant simply put duration. The quality and yield of the seeds get decreased due to the heavy attack.

Control: This can be controlled by choosing the old larvae around the surface area and throwing away the attacked leaves.

Needle Caterpillar: This caterpillar is covered with spines and produces a burning sensation when allowed to exposure to skin as it produces particular chemical substance. Initially the insect crowded in the leaf and then spread out all over the plant when it grows older.

Control: Manually, the bug can be killed only by soaking it in water or kerosene. The heavy attack can be managed by spraying organophosphate insecticides.

Leaf Hopper: This bug is found mainly in tropical and subtropical areas. The bug targets the leaf and draws all the nutrients of the leaf and gets curls at the pointer. Later, the whole leaf dry and die.

Control: The heavy attack can be controlled by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.

Mite: Mite likewise attacks the leaf and makes the entire plant weak. The bug presence can be identified when the leaf become yellowish, diminishes, turns red and drop. The bug can likewise be spread out through fallen leaves.

Control: Some preventive steps can be done like correct sanitation and burning the fallen leaves. Heavy attack can be treated by spraying insecticides.

Some dreadful bug which attacks flower and fruit are, Stink bug (Nezara viridula)

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a serious insect which assaults the plant throughout blossom period so the crop yield completely drops. This pest is seen around the tropical region.

The poisonous enzyme in the plant diminishes the entire plant.

Control: Insecticides suggested for this pest is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.

Tip borer caterpillar: The bugs typically takes place attacks the plant in blooming season and this bug is seen commonly in tropical regions. The female the eggs on the tender part of the plant and the young larvae feed the young fruits and plant ideas.

Control: Manually, the assaulted seeds are recommended to burn. The insecticides like monocrotophos and bensultap are sprayed at the flowering season.