Jatropha Curcas is getting significance commercially as the demand of nonrenewable fuel sources increases significantly and likewise jatropha curcas is an environment-friendly energy plantation. Plantation of this plant is thought about to be an outstanding fuel alternative and it is likewise very economical compared to other fuels. Recently, jatropha curcas is dealing with some problem with bugs and diseases. The bugs are classified into 2 ranges: Pest that impact young plants and Pest that affect developed plants.

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

Agrotis ipsilon: It is commonly referred to as Cut worm. This pest affects 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 bug can be managed by choosing the larva discovered around the plants or by blending the bran, sawdust with insecticides.

Scarabaeid Beetle: This bug ruins the root of the young plant. Initially, the larva takes in the organic matters present in the soil and after that pertains to the root. The larva attack might eliminate the entire plant.

Control: The plant with good resistance power can conquer the insect. For heavy attack, insecticides with parts 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 might completely kill the plants.

Control: Insecticides are utilized to control the pests.

Grasshopper: This is common pest discovered in several plants. Valanga nigricornis and Locusta widely assaults the plant. The bug frequently attacks 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 pest damages the Jatropha stem and it is widely seen in Indonesia. The stem attacked by this pest generally drop. The presence can be determined by the larva penetration hole at the stem.

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

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

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

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

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

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

Leaf Hopper: This pest is found mainly in tropical and subtropical regions. The insect targets the leaf and draws all the nutrients of the leaf and gets curls at the suggestion. Later, the entire 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 bug presence can be determined when the leaf ended up being yellow-colored, diminishes, turns red and drop. The bug can likewise be spread through fallen leaves.

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

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

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a major insect which assaults the plant during bloom duration so the crop yield completely drops. This insect is seen around the tropical region.

The harmful 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 takes place attacks the plant in blooming season and this pest is seen widely 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 pointers.

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