Jatropha jatropha curcas is getting importance commercially as the need of fossil fuels increases greatly and also Jatropha is an eco-friendly energy plantation. Plantation of this plant is thought about to be an exceptional fuel substitute and it is likewise extremely affordable compared to other fuels. Recently, Jatropha is facing some difficulty with bugs and illness. The bugs are categorized into two varieties: Pest that affect young plants and Pest that impact developed plants.

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

Agrotis ipsilon: It is commonly referred to as Cut worm. This pest 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 diminished the plant completely.

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

Scarabaeid Beetle: This the root of the young plant. Initially, the larva takes in the organic matters present in the soil and then comes to the root. The larva attack might eliminate the entire plant.

Control: The plant with excellent resistance power can get rid of the pest. For heavy attack, insecticides with components carbosulfan and carbofuran can be used to kill the pest.

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

Control: Insecticides are utilized to control the pests.

Grasshopper: This is common insect found in several plants. Valanga nigricornis and Locusta migratoria widely assaults the plant. The insect typically 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 bug damages the jatropha curcas stem and it is widely seen in Indonesia. The stem assaulted by this insect usually fall down. The existence can be recognized by the larva penetration hole at the stem.

Control: The Insecticide generally used 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 bug can consume all the leaves of the plant in other words duration. The quality and yield of the seeds get minimized due to the heavy attack.

Control: This can be controlled by choosing the old larvae around the surface and discarding the attacked leaves.

Needle Caterpillar: This caterpillar is covered with spines and produces a burning feeling when permitted to contact with skin as it produces specific chemical compound. Initially the insect crowded in the leaf and after that spread all over the plant when it grows older.

Control: Manually, the insect 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 mostly in tropical and subtropical areas. The pest targets the leaf and sucks all the nutrients of the leaf and gets curls at the pointer. Later, the entire leaf dry and die.

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

Mite: Mite also attacks the leaf and makes the entire plant weak. The insect presence can be recognized when the leaf become yellow-colored, diminishes, reddens and drop. The bug can also be spread through fallen leaves.

Control: Some preventive measures can be simulated correct 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 severe bug which assaults the plant throughout bloom duration so the crop yield entirely falls down. This insect is seen around the tropical area.

The hazardous enzyme in the plant diminishes the entire plant.

Control: Insecticides recommended for this bug is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.

Tip borer caterpillar: The bugs frequently happens attacks the plant in blooming season and this bug is seen widely 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 attacked seeds are suggested to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.