Pests Of Jatropha

Jatropha Curcas is acquiring significance commercially as the demand of sources increases greatly and also Jatropha is an environmentally friendly energy plantation. Plantation of this plant is considered to be an excellent fuel replacement and it is likewise really affordable compared to other fuels. Recently, Jatropha is dealing with some problem with bugs and illness. The insects are classified into two ranges: Pest that impact young plants and Pest that impact grown plants.

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

Agrotis ipsilon: It is frequently referred to 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 picking the larva found around the plants or by mixing the bran, sawdust with insecticides.

Scarabaeid Beetle: This bug destroys the root of the young plant. Initially, the larva takes in the organic matters present in the soil and after that comes to the root. The larva attack may kill the entire plant.

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

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

Control: Insecticides are utilized to manage the bugs.

Grasshopper: This is common insect discovered in several plants. Valanga nigricornis and Locusta migratoria widely attacks the plant. The insect typically assaults 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 pest damages the Jatropha stem and it is extensively seen in Indonesia. The stem assaulted by this pest typically drop. The existence can be identified by the larva penetration hole at the stem.

Control: The Insecticide generally used to manage this bug is carbofuran.

Pest of leaf: The typical 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 decreased due to the heavy attack.

Control: This can be managed by choosing 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 allowed to exposure to 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 gets older.

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

Leaf Hopper: This bug is found mainly in tropical and subtropical areas. The pest targets the leaf and draws all the nutrients of the leaf and gets curls at the pointer. Later, the entire leaf dry and die.

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

Mite: Mite likewise assaults the leaf and makes the entire plant weak. The bug presence can be recognized when the leaf become yellow-colored, diminishes, turns red and drop. The insect 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 treated by spraying insecticides.

Some dreadful bug 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 duration so the crop yield completely drops. This insect is seen around the tropical region.

The hazardous enzyme in the plant shrinks the entire plant.

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

Tip borer caterpillar: The bugs typically happens attacks the plant in flowering season and this bug 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 suggestions.

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