Pests Of Jatropha

Jatropha Curcas is getting importance commercially as the demand of fossil fuels increases tremendously and also Jatropha is an environmentally friendly energy plantation. Plantation of this plant is thought about to be an outstanding fuel replacement and it is likewise very affordable compared to other fuels. Recently, Jatropha is dealing with some difficulty with pests and illness. The insects are classified into 2 varieties: Pest that affect young plants and Pest that affect developed plants.

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

Agrotis ipsilon: It is typically understood as Cut worm. This insect 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 pest can be managed by choosing the larva discovered around the plants or by blending the bran, sawdust with insecticides.

Scarabaeid Beetle: This pest damages the root of the young plant. Initially, the larva consumes the organic matters present in the soil and then concerns the root. The larva attack might eliminate the entire plant.

Control: The plant with excellent resistance power can get rid of the insect. For heavy attack, insecticides with elements carbosulfan and carbofuran can be used to eliminate the insect.

Army worm: Spodoptera litura presence can be identified by biting in the leaves. The severe infection could completely kill the plants.

Control: Insecticides are utilized to control the insects.

Grasshopper: This is typical bug found in numerous plants. Valanga nigricornis and Locusta migratoria commonly attacks the plant. The pest frequently attacks the young plant.

Control: The insecticides utilized betacyfluthrin, cypermethrin, thiodicarb, MIPC, and fipronil.

Pest observed in fully grown plants:

Pest of Stem: Ostrinia furnacalis, Xyleborus spp.

Ostrinia furnacalis and Xyleborus: This bug damages the Jatropha stem and it is extensively seen in Indonesia. The stem assaulted by this bug typically drop. The presence can be identified by the larva penetration hole at the stem.

Control: The Insecticide generally used to control this pest 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 eat all the leaves of the plant in brief duration. The and yield of the seeds get minimized due to the heavy attack.

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

Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning experience when enabled to exposure to skin as it produces particular chemical substance. Initially the pest crowded in the leaf and after that spread all over the plant when it grows older.

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 mostly in tropical and subtropical areas. The insect targets the leaf and draws all the nutrients of the leaf and gets curls at the pointer. Later, the whole leaf dry and pass away.

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

Mite: Mite also attacks the leaf and makes the entire plant weak. The insect presence can be identified when the leaf become yellow-colored, shrinks, reddens and fall down. The pest can likewise be spread through fallen leaves.

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

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

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a severe bug which attacks the plant during blossom duration so the crop yield completely drops. This pest is seen around the tropical region.

The toxic enzyme in the plant diminishes the entire plant.

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

Tip borer caterpillar: The bugs typically happens attacks the plant in blooming season and this bug is seen extensively in tropical areas. The female insect laid the eggs on the tender part of the plant and the young larvae feed the young fruits and plant tips.

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