Jatropha Curcas is acquiring importance commercially as the demand of nonrenewable fuel sources increases significantly 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 also really cost-effective compared to other fuels. Recently, Jatropha is facing some difficulty with pests and diseases. The bugs are classified into 2 ranges: Pest that impact young plants and Pest that affect matured plants.

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

Agrotis ipsilon: It is typically known 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 area and this will shrunk the plant totally.

Control: This insect can be controlled 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 takes in the raw materials present in the soil and then comes to the root. The larva attack may kill the entire plant.

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

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

Control: Insecticides are used to control the bugs.

Grasshopper: This is common insect discovered in numerous plants. Valanga nigricornis and Locusta migratoria widely assaults the plant. The bug typically assaults the young plant.

Control: The insecticides utilized betacyfluthrin, cypermethrin, thiodicarb, MIPC, and fipronil.

Pest observed in mature plants:

Pest of Stem: Ostrinia furnacalis, Xyleborus spp.

Ostrinia furnacalis and Xyleborus: This bug damages the jatropha curcas stem and it is commonly seen in Indonesia. The stem attacked by this insect typically drop. The existence can be determined by the larva penetration hole at the stem.

Control: The Insecticide usually used to control this bug is .

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

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

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

Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning feeling when permitted to call with skin as it produces certain chemical substance. Initially the bug crowded in the leaf and then spread out all over the plant when it gets older.

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

Leaf Hopper: This pest is found mainly in tropical and subtropical regions. The bug targets the leaf and sucks all the nutrients of the leaf and gets curls at the suggestion. Later, the whole leaf dry and pass away.

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

Mite: Mite likewise assaults the leaf and makes the entire plant weak. The pest presence can be recognized when the leaf become yellowish, diminishes, reddens and drop. The pest can likewise be spread out through fallen leaves.

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

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

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a severe bug which assaults the plant during bloom period so the crop yield totally falls down. This pest is seen around the tropical area.

The poisonous enzyme in the plant diminishes the entire plant.

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

Tip borer caterpillar: The insects frequently occurs attacks the plant in flowering season and this bug is seen widely in tropical regions. The female insect laid the eggs on the tender part of the plant and the young larvae feed the young fruits and plant ideas.

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