Jatropha Curcas is gaining importance commercially as the need of fossil fuels increases tremendously and also jatropha curcas is an environmentally friendly energy plantation. Plantation of this plant is considered to be an exceptional fuel alternative and it is likewise extremely affordable compared to other fuels. Recently, jatropha curcas is dealing with some difficulty with insects and diseases. The bugs are classified into 2 varieties: Pest that impact young plants and Pest that impact developed plants.

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

Agrotis ipsilon: It is frequently referred to as Cut worm. This insect affects the seedlings and young jatropha curcas 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 pest can be managed by selecting the larva discovered around the plants or by mixing the bran, sawdust with insecticides.

Scarabaeid Beetle: This bug damages the root of the young plant. Initially, the larva consumes the raw materials present in the soil and after that concerns the root. The larva attack might eliminate the entire plant.

Control: The plant with good resistance power can overcome the pest. For heavy attack, insecticides with elements carbosulfan and carbofuran can be used to kill the insect.

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

Control: Insecticides are used to control the pests.

Grasshopper: This is common pest discovered in numerous plants. Valanga nigricornis and Locusta migratoria extensively attacks the plant. The insect often 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 harms the Jatropha stem and it is commonly seen in Indonesia. The stem attacked by this insect usually drop. The presence can be recognized by the larva penetration hole at the stem.

Control: The Insecticide usually utilized to control this pest 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 short 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 area and tossing away the assaulted leaves.

Needle Caterpillar: This caterpillar is covered with spines and produces a burning experience when allowed to exposure to skin as it produces specific chemical substance. Initially the pest crowded in the leaf and then spread out all over the plant when it ages.

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

Leaf Hopper: This insect is discovered mainly in tropical and subtropical regions. The insect 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 whole plant weak. The pest presence can be identified when the leaf ended up being yellow-colored, shrinks, turns red and drop. The bug can also be spread through fallen leaves.

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

Some awful 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 bloom period so the crop yield completely falls down. This pest is seen around the tropical region.

The poisonous enzyme in the plant diminishes the entire plant.

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

Tip borer caterpillar: The pests typically happens attacks the plant in flowering season and this bug is seen extensively 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 advised to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.