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Jatropha jatropha curcas is acquiring significance commercially as the demand of fossil fuels increases tremendously and also jatropha curcas is an environment-friendly energy plantation. Plantation of this plant is thought about to be an exceptional fuel substitute and it is likewise extremely cost-effective compared to other fuels. Recently, Jatropha is dealing with some trouble with bugs and diseases. The insects are categorized into 2 varieties: Pest that affect young plants and Pest that affect developed plants.

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

Agrotis ipsilon: It is typically called Cut worm. This bug affects the seedlings and young jatropha curcas plants. If the plant is impacted 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 picking the larva discovered around the plants or by blending the bran, sawdust with insecticides.

Scarabaeid Beetle: This bug ruins the root of the young plant. Initially, the larva consumes the raw materials present in the soil and after that comes to the root. The larva attack might kill the entire plant.

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

Army worm: Spodoptera litura presence can be recognized by biting in the leaves. The extreme infection might entirely eliminate the plants.

Control: Insecticides are utilized to manage the bugs.

Grasshopper: This prevails insect found in a number of plants. Valanga nigricornis and Locusta migratoria commonly attacks the plant. The bug 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 bug harms the jatropha curcas stem and it is widely seen in Indonesia. The stem assaulted by this insect usually drop. The presence can be determined by the larva penetration hole at the stem.

Control: The Insecticide usually used to control this bug 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 short period. The quality and yield of the seeds get reduced due to the heavy attack.

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

Needle Caterpillar: This caterpillar is covered with spines and produces a burning feeling when allowed to call with skin as it produces particular chemical compound. Initially the bug crowded in the leaf and then spread all over the plant when it grows older.

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

Leaf Hopper: This insect is discovered mostly in tropical and subtropical areas. The bug targets the leaf and draws 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 likewise assaults the leaf and makes the entire plant weak. The insect presence can be identified when the leaf ended up being yellowish, shrinks, reddens and fall down. The pest can likewise be spread through fallen leaves.

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

Some terrible pest which assaults flower and fruit are, Stink bug (Nezara viridula)

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a major insect which assaults the plant during blossom duration so the crop yield totally falls down. This insect is seen around the tropical area.

The toxic enzyme in the plant shrinks the entire plant.

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

Tip borer caterpillar: The bugs frequently occurs attacks the plant in blooming season and this insect is seen commonly in tropical regions. The female pest laid the eggs on the tender part of the plant and the young larvae feed the young fruits and plant ideas.

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