Jatropha Curcas is getting importance commercially as the need of fossil fuels increases enormously and likewise jatropha curcas is an eco-friendly energy plantation. Plantation of this plant is considered to be an exceptional fuel replacement and it is likewise very affordable compared to other fuels. Recently, jatropha curcas is dealing with some problem with pests and diseases. The pests are classified into 2 varieties: Pest that affect young plants and Pest that affect developed plants.

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

Agrotis ipsilon: It is commonly referred to as Cut worm. This insect 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 totally.

Control: This insect can be controlled by picking the larva found around the plants or by mixing the bran, sawdust with .

Scarabaeid Beetle: This bug destroys the root of the young plant. Initially, the larva takes in the raw materials present in the soil and after that concerns the root. The larva attack may kill the entire plant.

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

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

Control: Insecticides are utilized to control the bugs.

Grasshopper: This prevails insect discovered in a number of plants. Valanga nigricornis and Locusta migratoria commonly assaults the plant. The insect typically 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 curcas stem and it is commonly seen in Indonesia. The stem attacked by this bug usually drop. The existence can be determined by the larva penetration hole at the stem.

Control: The Insecticide typically utilized to manage this pest is carbofuran.

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

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

Control: This can be managed by selecting 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 sensation when allowed to call with skin as it produces certain chemical substance. Initially the pest crowded in the leaf and then 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 pest 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 suggestion. 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 assaults the leaf and makes the entire plant weak. The pest presence can be identified when the leaf ended up being yellow-colored, shrinks, turns red and fall down. The insect can likewise be spread through fallen leaves.

Control: Some preventive measures can be simulated appropriate sanitation and burning the fallen leaves. Heavy attack can be treated 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 serious insect which assaults the plant during blossom duration so the crop yield completely falls down. This bug is seen around the tropical area.

The hazardous 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 insects commonly happens attacks the plant in blooming season and this insect is seen extensively in tropical regions. The female bug laid the eggs on the tender part of the plant and the young larvae feed the young fruits and plant pointers.

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