<br>Jatropha Curcas is acquiring significance commercially as the need of fossil fuels increases tremendously and also Jatropha is an environment-friendly energy plantation. Plantation of this plant is considered to be an excellent fuel replacement and it is also really affordable compared to other fuels. Recently, Jatropha is facing some trouble with bugs and diseases. The bugs are classified into 2 varieties: Pest that affect young plants and Pest that affect grown plants.<br>
<br>Young plant bugs: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.<br>
<br>Agrotis ipsilon: It is typically called Cut worm. This insect impacts the seedlings and young Jatropha plants. If the plant is impacted by the cutworm, the stem gets cut nearer to the soil surface and this will diminished the plant completely.<br>
<br>Control: This bug can be controlled by picking the larva discovered around the plants or by mixing the bran, sawdust with insecticides.<br>
<br>Scarabaeid Beetle: This pest destroys the root of the young plant. Initially, the larva takes in the raw materials present in the soil and after that pertains to the root. The larva attack might eliminate the whole plant.<br>
<br>Control: The plant with good resistance power can conquer the bug. For heavy attack, insecticides with elements carbosulfan and carbofuran can be utilized to kill the pest.<br>
<br>Army worm: Spodoptera litura presence can be determined by biting in the leaves. The serious infection could entirely eliminate the plants.<br>
<br>Control: Insecticides are utilized to manage the insects.<br>
<br>Grasshopper: This prevails bug found in several plants. Valanga nigricornis and Locusta migratoria extensively assaults the plant. The insect frequently attacks the young plant.<br>
<br>Control: The insecticides utilized betacyfluthrin, cypermethrin, thiodicarb, MIPC, and fipronil.<br>
<br>Pest observed in mature plants:<br>
<br>Pest of Stem: Ostrinia furnacalis, Xyleborus spp.<br>
<br>Ostrinia furnacalis and Xyleborus: This pest harms the Jatropha stem and it is extensively seen in Indonesia. The stem attacked by this pest generally fall down. The existence can be determined by the larva penetration hole at the stem.<br>
<br>Control: The Insecticide usually used to manage this pest is carbofuran.<br>
<br>Pest of leaf: The common insects observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.<br>
<br>Leaf Caterpillar: This pest can consume all the leaves of the plant in short duration. The quality and yield of the seeds get minimized due to the heavy attack.<br>
<br>Control: This can be controlled by choosing the old larvae around the surface area and getting rid of the assaulted leaves.<br>
<br>Needle Caterpillar: This caterpillar is covered with spines and produces a burning feeling when permitted to contact with skin as it produces particular chemical compound. Initially the insect crowded in the leaf and after that spread out all over the plant when it gets older.<br>
<br>Control: Manually, the pest can be killed just by soaking it in water or kerosene. The heavy attack can be managed by spraying organophosphate insecticides.<br>
<br>Leaf Hopper: This pest is found mainly in tropical and subtropical regions. The pest targets the leaf and sucks all the of the leaf and gets curls at the tip. Later, the entire leaf dry and die.<br>
<br>Control: The heavy attack can be managed by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.<br>
<br>Mite: Mite likewise assaults the leaf and makes the entire plant weak. The pest existence can be determined when the leaf become yellowish, diminishes, reddens and fall down. The bug can also be spread through fallen leaves.<br>
<br>Control: Some preventive steps can be done like proper sanitation and burning the fallen leaves. Heavy attack can be dealt with by spraying insecticides.<br>
<br>Some dreadful insect which attacks flower and fruit are, Stink bug (Nezara viridula)<br>
<br>Chrysocoris javanus, Tip borer caterpillar.<br>
<br>Stink Bug: Sting bug is a serious pest which assaults the plant throughout bloom duration so the crop yield totally falls down. This pest is seen around the tropical region.<br>
<br>The harmful enzyme in the plant shrinks the entire plant.<br>
<br>Control: Insecticides suggested for this pest is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.<br>
<br>Tip borer caterpillar: The bugs commonly occurs attacks the plant in blooming season and this bug is seen commonly 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 tips.<br>
<br>Control: Manually, the assaulted seeds are advised to burn. The insecticides like monocrotophos and bensultap are sprayed at the flowering season.<br>