Jatropha Curcas is acquiring value commercially as the need of nonrenewable fuel sources increases greatly and likewise Jatropha is an eco-friendly energy plantation. Plantation of this plant is considered to be an exceptional fuel replacement and it is also very cost-effective compared to other fuels. Recently, Jatropha is facing some trouble with insects and illness. The pests are classified into two varieties: Pest that impact young plants and Pest that impact matured plants.

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

Agrotis ipsilon: It is frequently called 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 area and this will diminished the plant entirely.

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

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

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

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

Control: Insecticides are used to control the pests.

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

Control: The Insecticide usually 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 insect can eat all the leaves of the plant in other words period. The quality and yield of the seeds get lowered due to the heavy attack.

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

Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning experience when allowed to contact with skin as it produces certain chemical compound. Initially the insect crowded in the leaf and then spread out all over the plant when it gets older.

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

Leaf Hopper: This insect is found mostly in tropical and subtropical regions. The pest targets the leaf and sucks all the nutrients of the leaf and gets curls at the idea. Later, the entire leaf dry and pass away.

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

Mite: Mite also assaults the leaf and makes the entire plant weak. The bug existence can be identified when the leaf ended up being yellow-colored, shrinks, reddens and drop. The pest can also 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 bug which assaults flower and fruit are, Stink bug (Nezara viridula)

Chrysocoris javanus, Tip borer caterpillar.

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

The harmful enzyme in the plant diminishes the entire plant.

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

Tip borer caterpillar: The pests frequently takes place attacks the plant in blooming season and this bug is seen commonly 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 pointers.

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