Pests Of Jatropha

Jatropha Curcas is getting importance commercially as the demand of nonrenewable fuel sources increases enormously and also Jatropha is an environment-friendly energy plantation. Plantation of this plant is considered to be an exceptional fuel substitute and it is likewise very cost-effective compared to other fuels. Recently, Jatropha is dealing with some problem with insects and illness. The pests are categorized into 2 varieties: Pest that impact young plants and Pest that impact developed plants.

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

Agrotis ipsilon: It is commonly called Cut worm. This pest affects 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 diminished the plant entirely.

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

Scarabaeid Beetle: This insect ruins the root of the young plant. Initially, the larva takes in the natural matters present in the soil and after that pertains to the root. The larva attack may kill the whole plant.

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

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

Control: Insecticides are utilized to control the bugs.

Grasshopper: This prevails insect discovered in several plants. Valanga nigricornis and Locusta migratoria widely assaults the plant. The insect typically 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 commonly seen in Indonesia. The stem attacked by this insect normally drop. The presence can be recognized by the larva penetration hole at the stem.

Control: The Insecticide normally used to manage this insect 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 other words period. The quality and yield of the seeds get minimized due to the heavy attack.

Control: This can be managed by picking 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 feeling when allowed to contact with skin as it produces specific chemical substance. Initially the pest crowded in the leaf and after that spread out all over the plant when it grows older.

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

Leaf Hopper: This bug is discovered mainly in tropical and subtropical areas. The insect targets the leaf and sucks all the nutrients of the leaf and gets curls at the tip. 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 likewise assaults the leaf and makes the entire plant weak. The pest existence can be identified when the leaf become yellow-colored, diminishes, reddens and fall down. The insect can also be spread out through fallen leaves.

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

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

Chrysocoris javanus, Tip borer caterpillar.

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

The harmful enzyme in the plant shrinks the entire plant.

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

Tip borer caterpillar: The pests commonly occurs attacks the plant in blooming season and this pest is seen commonly 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 suggestions.

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