Pests Of Jatropha

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 exceptional fuel replacement and it is also extremely economical compared to other fuels. Recently, Jatropha is dealing with some difficulty with pests and diseases. The insects are classified into two ranges: Pest that impact young plants and Pest that impact grown plants.

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

Agrotis ipsilon: It is frequently understood as Cut worm. This pest 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 totally.

Control: This bug can be managed by picking the larva found around the plants or by blending the bran, sawdust with insecticides.

Scarabaeid Beetle: This insect damages 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 excellent resistance power can conquer the bug. For heavy attack, insecticides with elements carbosulfan and carbofuran can be utilized to kill the pest.

Army worm: Spodoptera litura existence can be recognized by biting in the leaves. The extreme infection might completely kill the plants.

Control: Insecticides are utilized to manage the pests.

Grasshopper: This is typical insect found in several plants. Valanga nigricornis and Locusta migratoria commonly assaults the plant. The bug often attacks 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 widely seen in Indonesia. The stem attacked by this pest generally drop. The presence can be recognized by the hole at the stem.

Control: The Insecticide typically utilized to manage this bug 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 other words period. The quality and yield of the seeds get reduced due to the heavy attack.

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

Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning sensation when allowed to contact with skin as it produces certain chemical compound. Initially the bug crowded in the leaf and after that spread all over the plant when it ages.

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.

Leaf Hopper: This bug is discovered primarily in tropical and subtropical regions. The insect targets the leaf and sucks all the nutrients of the leaf and gets curls at the tip. Later, the entire leaf dry and pass away.

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

Mite: Mite likewise attacks the leaf and makes the entire plant weak. The bug existence can be identified when the leaf become yellowish, shrinks, turns red and fall down. The bug can also be spread out through fallen leaves.

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

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

Chrysocoris javanus, Tip borer caterpillar.

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

The harmful enzyme in the plant diminishes the entire plant.

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

Tip borer caterpillar: The pests frequently occurs attacks the plant in blooming season and this bug is seen extensively 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 suggestions.

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