Jatropha Curcas is gaining importance commercially as the need of fossil fuels increases greatly and also jatropha curcas is an environment-friendly energy plantation. Plantation of this plant is considered to be an excellent fuel alternative and it is also extremely cost-effective compared to other fuels. Recently, jatropha curcas is dealing with some problem with pests and illness. The pests are classified into 2 ranges: Pest that impact young plants and Pest that affect grown plants.

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

ipsilon: It is frequently known as Cut worm. This bug impacts 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 entirely.

Control: This pest can be controlled by choosing the larva found around the plants or by mixing the bran, sawdust with insecticides.

Scarabaeid Beetle: This insect ruins the root of the young plant. Initially, the larva consumes the raw materials present in the soil and then pertains to the root. The larva attack might kill the whole plant.

Control: The plant with excellent resistance power can get rid of the bug. For heavy attack, insecticides with components carbosulfan and carbofuran can be utilized to eliminate the insect.

Army worm: Spodoptera litura presence can be determined by biting in the leaves. The serious infection might totally eliminate the plants.

Control: Insecticides are used to control the bugs.

Grasshopper: This prevails bug discovered in numerous plants. Valanga nigricornis and Locusta migratoria commonly attacks the plant. The bug typically 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 bug harms the Jatropha stem and it is widely seen in Indonesia. The stem assaulted by this insect generally drop. The presence can be determined by the larva penetration hole at the stem.

Control: The Insecticide typically used to manage 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 bug can consume all the leaves of the plant in other words period. The quality and yield of the seeds get decreased due to the heavy attack.

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

Needle Caterpillar: This caterpillar is covered with spines and produces a burning sensation when allowed to exposure to skin as it produces certain chemical substance. Initially the bug crowded in the leaf and then spread 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 managed by spraying organophosphate insecticides.

Leaf Hopper: This bug is found primarily 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 entire leaf dry and die.

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 insect presence can be identified when the leaf ended up being yellowish, diminishes, reddens and fall down. The bug can likewise be spread out through fallen leaves.

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

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

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a serious pest which attacks the plant throughout blossom duration so the crop yield entirely falls down. This insect is seen around the tropical area.

The toxic enzyme in the plant shrinks the entire plant.

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

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

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