Pests Of Jatropha

Jatropha Curcas is gaining value commercially as the need of fossil fuels increases enormously and likewise Jatropha is an environment-friendly energy plantation. Plantation of this plant is thought about to be an exceptional fuel replacement and it is likewise extremely affordable compared to other fuels. Recently, Jatropha is facing some difficulty with pests and illness. The insects are categorized into 2 varieties: Pest that impact young plants and Pest that affect developed plants.

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

Agrotis ipsilon: It is frequently referred to as 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 bug can be controlled by picking the larva found 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 takes in the raw materials present in the soil and then concerns the root. The larva attack might kill the entire plant.

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

Army worm: Spodoptera litura existence can be identified by biting in the leaves. The serious infection might totally eliminate the plants.

Control: Insecticides are used to manage the bugs.

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

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

Pest of leaf: The common insects 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 duration. The quality and yield of the seeds get minimized 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 and produces a burning sensation when permitted to exposure to skin as it produces specific chemical substance. Initially the pest crowded in the leaf and after that spread all over the plant when it ages.

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

Leaf Hopper: This pest is discovered primarily in tropical and subtropical areas. The pest targets the leaf and draws all the nutrients of the leaf and gets curls at the tip. Later, the whole leaf dry and die.

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 pest presence can be determined when the leaf ended up being yellowish, shrinks, turns red and drop. The bug can likewise be spread through fallen leaves.

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

Some dreadful insect which assaults flower and fruit are, Stink bug (Nezara viridula)

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a severe insect which attacks the plant throughout blossom duration so the crop yield completely falls down. This bug is seen around the tropical area.

The toxic enzyme in the plant shrinks the whole plant.

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

Tip borer caterpillar: The insects frequently takes place attacks the plant in blooming season and this insect 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 suggestions.

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