Pests Of Jatropha

Jatropha Curcas is getting significance commercially as the demand of nonrenewable fuel sources increases greatly and also Jatropha is an environment-friendly energy plantation. Plantation of this plant is considered to be an excellent fuel substitute and it is also extremely economical compared to other fuels. Recently, Jatropha is dealing with some difficulty with pests and diseases. The bugs are classified into 2 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 frequently understood as 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 shrunk the plant completely.

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

Scarabaeid Beetle: This pest damages the root of the young plant. Initially, the larva takes in the natural matters present in the soil and then comes to the root. The may eliminate the entire plant.

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

Army worm: Spodoptera litura presence can be determined by biting in the leaves. The extreme infection could totally eliminate the plants.

Control: Insecticides are utilized to manage the insects.

Grasshopper: This is common pest discovered in numerous plants. Valanga nigricornis and Locusta migratoria extensively attacks the plant. The bug frequently 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 commonly seen in Indonesia. The stem attacked by this insect normally fall down. The presence can be recognized 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 pest can eat all the leaves of the plant simply put period. The quality and yield of the seeds get reduced due to the heavy attack.

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

Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning sensation when permitted to call with skin as it produces particular chemical substance. Initially the bug crowded in the leaf and after that spread all over the plant when it ages.

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

Leaf Hopper: This insect is found mostly in tropical and subtropical regions. The bug targets the leaf and draws all the nutrients of the leaf and gets curls at the idea. 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 pest presence can be determined when the leaf become yellowish, diminishes, reddens and drop. The pest can likewise be spread out through fallen leaves.

Control: Some preventive procedures can be simulated appropriate sanitation and burning the fallen leaves. Heavy attack can be dealt with 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 major bug which assaults the plant throughout bloom period so the crop yield totally falls down. This bug is seen around the tropical region.

The harmful enzyme in the plant shrinks the entire plant.

Control: Insecticides recommended for this insect is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.

Tip borer caterpillar: The pests frequently takes place attacks the plant in flowering season and this pest is seen extensively 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 advised to burn. The insecticides like monocrotophos and bensultap are sprayed at the flowering season.