Jatropha jatropha curcas is acquiring value commercially as the demand of nonrenewable fuel sources increases enormously and also Jatropha is an environmentally friendly energy plantation. Plantation of this plant is thought about to be an excellent fuel replacement and it is likewise really economical compared to other fuels. Recently, jatropha curcas is facing some trouble with pests and illness. The bugs are categorized into 2 varieties: Pest that affect young plants and Pest that affect matured plants.

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

Agrotis ipsilon: It is frequently known as Cut worm. This pest impacts the seedlings and young Jatropha plants. If the plant is affected by the cutworm, the stem gets cut nearer to the soil surface and this will shrunk the plant completely.

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

Scarabaeid Beetle: This bug ruins the root of the young plant. Initially, the larva consumes the raw materials present in the soil and then concerns the root. The larva attack might eliminate the whole plant.

Control: The plant with good resistance power can overcome the bug. For heavy attack, insecticides with elements carbosulfan and carbofuran can be utilized to kill the insect.

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

Control: Insecticides are utilized to manage the pests.

Grasshopper: This prevails insect found in a number of plants. Valanga nigricornis and Locusta migratoria commonly assaults the plant. The pest often attacks 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 harms the Jatropha stem and it is commonly seen in Indonesia. The stem assaulted by this bug usually drop. The existence can be recognized by the larva penetration hole at the stem.

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

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

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

Control: This can be controlled by picking the old larvae around the surface area and discarding the attacked leaves.

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

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

Leaf Hopper: This pest is found primarily in tropical and subtropical areas. The insect targets the leaf and sucks all the nutrients of the leaf and gets curls at the idea. 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 assaults the leaf and makes the entire plant weak. The bug existence can be recognized when the leaf become yellow-colored, shrinks, turns red and fall down. The pest can also be spread through fallen leaves.

Control: Some preventive measures can be simulated proper sanitation and burning the fallen leaves. Heavy attack can be treated by spraying insecticides.

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

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a severe pest which assaults the plant throughout bloom duration so the crop yield completely falls down. This bug is seen around the tropical region.

The poisonous enzyme in the plant diminishes the entire plant.

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

Tip borer caterpillar: The pests commonly happens attacks the plant in blooming season and this bug 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 assaulted seeds are recommended to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.