Pests Of Jatropha

Jatropha Curcas is gaining value commercially as the need of nonrenewable fuel sources increases significantly and likewise Jatropha is an eco-friendly energy plantation. Plantation of this plant is considered to be an outstanding fuel alternative and it is likewise very cost-effective compared to other fuels. Recently, Jatropha is facing some problem with insects and illness. The insects are classified into two varieties: Pest that affect young plants and Pest that affect grown plants.

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

Agrotis ipsilon: It is commonly called Cut worm. This insect impacts the seedlings and young Jatropha plants. If the plant is affected by the cutworm, the stem gets cut nearer to the soil surface and this will shrunk the plant totally.

Control: This bug can be controlled by selecting the larva discovered around the plants or by blending the bran, 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 kill the entire plant.

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

Army worm: Spodoptera litura presence can be determined by biting in the leaves. The severe infection might entirely kill the plants.

Control: Insecticides are utilized to manage the bugs.

Grasshopper: This is typical insect discovered in a number of plants. Valanga nigricornis and Locusta migratoria commonly assaults the plant. The insect frequently attacks the young plant.

Control: The insecticides used 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 widely seen in Indonesia. The stem assaulted by this pest typically drop. The presence can be recognized by the larva penetration hole at the stem.

Control: The Insecticide typically utilized to manage this insect is carbofuran.

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

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

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

Needle Caterpillar: This caterpillar is covered with spines and produces a burning experience when permitted to exposure to skin as it produces specific chemical compound. Initially the bug crowded in the leaf and then 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 mostly in tropical and subtropical areas. The bug 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 controlled by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.

Mite: Mite also assaults the leaf and makes the whole plant weak. The bug presence can be recognized when the leaf become yellow-colored, shrinks, reddens and fall down. The pest can also be spread through fallen leaves.

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

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

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a serious bug which attacks the plant throughout bloom duration so the crop yield completely drops. This pest is seen around the tropical area.

The toxic enzyme in the plant shrinks the entire plant.

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

Tip borer caterpillar: The pests typically takes place attacks the plant in blooming season and this insect is seen commonly in tropical regions. 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 attacked seeds are recommended to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.