Pests Of Jatropha

Jatropha Curcas is acquiring value commercially as the demand of fossil fuels increases tremendously and also Jatropha is an eco-friendly energy plantation. Plantation of this plant is considered to be an excellent fuel replacement and it is also very cost-effective compared to other fuels. Recently, Jatropha is dealing with some trouble with insects and diseases. The pests are categorized into 2 ranges: Pest that impact young plants and Pest that impact developed plants.

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

Agrotis ipsilon: It is typically referred to as 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 shrunk the plant entirely.

Control: This insect can be controlled by picking the larva found around the plants or by blending the bran, with insecticides.

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 may kill the entire plant.

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

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

Control: Insecticides are utilized to manage the pests.

Grasshopper: This prevails bug found in numerous plants. Valanga nigricornis and Locusta migratoria extensively assaults the plant. The pest typically attacks 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 pest damages the Jatropha stem and it is commonly seen in Indonesia. The stem attacked by this insect generally drop. The presence can be recognized by the larva penetration hole at the stem.

Control: The Insecticide normally used to control this bug is carbofuran.

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

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

Control: This can be controlled by picking the old larvae around the surface area and tossing away the assaulted leaves.

Needle Caterpillar: This caterpillar is covered with spines and produces a burning sensation when permitted to exposure to skin as it produces specific chemical substance. Initially the insect crowded in the leaf and after that spread out all over the plant when it gets 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 bug is found primarily in tropical and subtropical areas. The insect 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 utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.

Mite: Mite also assaults the leaf and makes the whole plant weak. The bug existence can be recognized when the leaf ended up being yellow-colored, shrinks, turns red and drop. The insect can likewise be spread through fallen leaves.

Control: Some preventive procedures can be simulated proper sanitation and burning the fallen leaves. Heavy attack can be dealt with by spraying insecticides.

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

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a major bug which attacks the plant during bloom period so the crop yield entirely drops. This bug is seen around the tropical area.

The poisonous enzyme in the plant diminishes the entire plant.

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

Tip borer caterpillar: The pests commonly occurs attacks the plant in flowering season and this bug is seen extensively in tropical areas. The female bug laid the eggs on the tender part of the plant and the young larvae feed the young fruits and plant pointers.

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