1 Pests Of Jatropha

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Jatropha Curcas is acquiring importance commercially as the demand of nonrenewable fuel sources increases tremendously and likewise Jatropha is an eco-friendly energy plantation. Plantation of this plant is considered to be an excellent fuel substitute and it is likewise very cost-effective compared to other fuels. Recently, Jatropha is dealing with some trouble with bugs and diseases. The pests are classified into two ranges: Pest that impact young plants and Pest that impact developed plants.

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

Agrotis ipsilon: It is frequently known as Cut worm. This insect affects the seedlings and young . If the plant is impacted by the cutworm, the stem gets cut nearer to the soil surface area and this will diminished the plant entirely.

Control: This insect can be managed by selecting the larva discovered around the plants or by mixing the bran, sawdust with insecticides.

Scarabaeid Beetle: This pest destroys the root of the young plant. Initially, the larva consumes the raw materials present in the soil and then comes to the root. The larva attack might eliminate the entire plant.

Control: The plant with great resistance power can conquer the insect. For heavy attack, insecticides with elements carbosulfan and carbofuran can be used to eliminate the pest.

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

Control: Insecticides are used to manage the bugs.

Grasshopper: This is typical bug discovered in numerous plants. Valanga nigricornis and Locusta migratoria commonly attacks the plant. The pest typically attacks 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 pest damages the Jatropha stem and it is widely seen in Indonesia. The stem attacked by this insect generally drop. The presence can be identified by the larva penetration hole at the stem.

Control: The Insecticide typically used to manage this bug is carbofuran.

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

Leaf Caterpillar: This bug can eat all the leaves of the plant in other words duration. The quality and yield of the seeds get decreased due to the heavy attack.

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

Needle Caterpillar: This caterpillar is covered with spines and produces a burning feeling when enabled to call with skin as it produces specific chemical compound. Initially the insect crowded in the leaf and after that spread out all over the plant when it ages.

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

Leaf Hopper: This bug is discovered primarily in tropical and subtropical areas. The pest targets the leaf and sucks all the nutrients of the leaf and gets curls at the idea. Later, the entire leaf dry and pass away.

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

Mite: Mite also attacks the leaf and makes the whole plant weak. The insect presence can be identified when the leaf become yellowish, shrinks, turns red and drop. The pest can also be spread out through fallen leaves.

Control: Some preventive procedures can be done like appropriate sanitation and burning the fallen leaves. Heavy attack can be dealt with by spraying insecticides.

Some terrible bug which assaults flower and fruit are, Stink bug (Nezara viridula)

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a major pest which attacks the plant throughout bloom period so the crop yield entirely drops. This pest is seen around the tropical area.

The poisonous enzyme in the plant shrinks the entire plant.

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

Tip borer caterpillar: The bugs commonly occurs attacks the plant in blooming season and this pest is seen extensively in tropical areas. The female insect laid the eggs on the tender part of the plant and the young larvae feed the young fruits and plant suggestions.

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