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Jatropha Curcas is getting significance commercially as the need of nonrenewable fuel sources increases tremendously and also Jatropha is an environmentally friendly energy plantation. Plantation of this plant is thought about to be an exceptional fuel replacement and it is also extremely affordable compared to other fuels. Recently, Jatropha is dealing with some problem with bugs and illness. The pests are into two ranges: Pest that affect young plants and Pest that impact grown plants.

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

Agrotis ipsilon: It is frequently called Cut worm. This bug impacts the seedlings and young jatropha curcas plants. If the plant is affected by the cutworm, the stem gets cut nearer to the soil surface and this will diminished the plant totally.

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

Scarabaeid Beetle: This insect damages the root of the young plant. Initially, the larva consumes the organic matters present in the soil and then pertains to the root. The larva attack might eliminate the entire plant.

Control: The plant with good resistance power can overcome the pest. For heavy attack, insecticides with components carbosulfan and carbofuran can be used to kill the pest.

Army worm: Spodoptera litura presence can be identified by biting in the leaves. The extreme infection could completely kill the plants.

Control: Insecticides are utilized to control the bugs.

Grasshopper: This is common insect discovered in numerous plants. Valanga nigricornis and Locusta migratoria extensively attacks the plant. The insect frequently assaults the young plant.

Control: The insecticides used 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 attacked by this insect typically drop. The existence can be recognized by the larva penetration hole at the stem.

Control: The Insecticide normally utilized to manage this bug is carbofuran.

Pest of leaf: The common bugs 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 lowered due to the heavy attack.

Control: This can be managed by picking the old larvae around the surface and tossing away the assaulted leaves.

Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning experience when enabled to exposure to skin as it produces particular chemical substance. Initially the pest crowded in the leaf and after that spread out all over the plant when it gets older.

Control: Manually, the insect 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 found primarily in tropical and subtropical regions. The bug targets the leaf and sucks all the nutrients of the leaf and gets curls at the idea. Later, the whole leaf dry and pass away.

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

Mite: Mite also assaults the leaf and makes the entire plant weak. The pest existence can be identified when the leaf become yellowish, shrinks, reddens and drop. The pest can also be spread through fallen leaves.

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

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

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a serious pest which attacks the plant during bloom period so the crop yield totally falls down. This insect is seen around the tropical region.

The poisonous enzyme in the plant diminishes the entire plant.

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

Tip borer caterpillar: The bugs typically happens attacks the plant in flowering season and this bug is seen extensively in tropical areas. The female pest laid the eggs on the tender part of the plant and the young larvae feed the young fruits and plant tips.

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