Jatropha jatropha curcas is getting importance commercially as the need of nonrenewable fuel sources increases tremendously and also jatropha curcas is an environment-friendly energy plantation. Plantation of this plant is considered to be an exceptional fuel replacement and it is also extremely affordable compared to other fuels. Recently, Jatropha is facing some trouble with insects and diseases. The insects are classified into two varieties: Pest that impact young plants and Pest that affect matured plants.

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

Agrotis ipsilon: It is commonly referred to as Cut worm. This pest affects the seedlings and young jatropha curcas plants. If the plant is affected by the cutworm, the stem gets cut nearer to the soil surface area and this will shrunk the plant completely.

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

Scarabaeid Beetle: This pest ruins the root of the young plant. Initially, the larva consumes the raw materials present in the soil and after that comes to the root. The larva attack may eliminate the entire plant.

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

Army worm: Spodoptera litura presence can be identified by biting in the leaves. The extreme infection might totally eliminate the plants.

Control: Insecticides are utilized to manage the pests.

Grasshopper: This is common insect discovered in a number of plants. Valanga nigricornis and Locusta migratoria commonly attacks the plant. The bug often assaults the young plant.

Control: The insecticides used betacyfluthrin, cypermethrin, thiodicarb, MIPC, and .

Pest observed in fully grown plants:

Pest of Stem: Ostrinia furnacalis, Xyleborus spp.

Ostrinia furnacalis and Xyleborus: This bug harms the Jatropha stem and it is commonly seen in Indonesia. The stem assaulted by this bug usually drop. The presence can be recognized by the larva penetration hole at the stem.

Control: The Insecticide generally utilized to control this pest is carbofuran.

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

Leaf Caterpillar: This pest can consume all the leaves of the plant in other words period. The quality and yield of the seeds get minimized due to the heavy attack.

Control: This can be managed by selecting the old larvae around the surface and getting rid of the attacked leaves.

Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning sensation when allowed 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 gets older.

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

Leaf Hopper: This pest is discovered mostly in tropical and subtropical regions. The bug targets the leaf and draws 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 managed by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.

Mite: Mite also assaults the leaf and makes the entire plant weak. The insect existence can be identified when the leaf become yellow-colored, shrinks, turns red and fall down. The bug can likewise be spread through fallen leaves.

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

Some terrible insect which assaults 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 duration so the crop yield totally falls down. This insect is seen around the tropical area.

The poisonous enzyme in the plant shrinks the entire plant.

Control: Insecticides advised for this bug 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 extensively in tropical areas. The female bug 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.