Jatropha Curcas is getting value commercially as the need of fossil fuels increases tremendously and likewise jatropha curcas is an environment-friendly energy plantation. Plantation of this plant is thought about to be an excellent fuel alternative and it is also really cost-effective compared to other fuels. Recently, Jatropha is dealing with some trouble with bugs and illness. The insects are classified into 2 varieties: Pest that affect young plants and Pest that affect grown plants.

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

Agrotis ipsilon: It is frequently called Cut worm. This bug 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 shrunk the plant entirely.

Control: This pest can be controlled by selecting the larva discovered around the plants or by blending the bran, sawdust with insecticides.

Scarabaeid Beetle: This insect ruins the root of the young plant. Initially, the larva consumes the natural matters present in the soil and then concerns the root. The larva attack may kill the whole plant.

Control: The plant with great resistance power can get rid of the insect. For heavy attack, insecticides with parts carbosulfan and carbofuran can be used to eliminate the insect.

Army worm: Spodoptera litura existence can be determined by biting in the leaves. The extreme infection could totally eliminate the plants.

Control: Insecticides are used to manage the pests.

Grasshopper: This prevails pest found in several plants. Valanga nigricornis and Locusta migratoria extensively attacks the plant. The insect often assaults the young plant.

Control: The insecticides used betacyfluthrin, cypermethrin, thiodicarb, MIPC, and fipronil.

Pest observed in mature plants:

Pest of Stem: Ostrinia furnacalis, Xyleborus spp.

Ostrinia furnacalis and Xyleborus: This insect damages the jatropha curcas stem and it is extensively seen in Indonesia. The stem attacked by this pest normally fall down. The existence can be determined by the larva penetration hole at the stem.

Control: The Insecticide normally used to manage this pest is carbofuran.

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

Leaf Caterpillar: This pest can consume all the leaves of the plant in short period. The quality and yield of the seeds get lowered due to the heavy attack.

Control: This can be managed by choosing the old larvae around the surface area and throwing away 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 certain chemical substance. Initially the pest crowded in the leaf and after that spread out all over the plant when it grows older.

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

Leaf Hopper: This pest is found mainly in tropical and . 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 pass away.

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

Mite: Mite also attacks the leaf and makes the entire plant weak. The insect existence can be determined when the leaf ended up being yellowish, shrinks, reddens and fall down. The pest 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 dreadful bug which assaults flower and fruit are, Stink bug (Nezara viridula)

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a major insect which attacks the plant throughout blossom period so the crop yield totally falls down. This insect is seen around the tropical region.

The harmful enzyme in the plant shrinks the entire plant.

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

Tip borer caterpillar: The insects frequently occurs attacks the plant in flowering season and this bug is seen extensively in tropical regions. The female bug laid the eggs on the tender part of the plant and the young larvae feed the young fruits and plant tips.

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