Pests Of Jatropha

Jatropha Curcas is acquiring value commercially as the demand of fossil fuels increases significantly and likewise Jatropha is an environment-friendly energy plantation. Plantation of this plant is considered to be an outstanding fuel alternative and it is also very economical compared to other fuels. Recently, Jatropha is dealing with some trouble with insects and diseases. The bugs are classified into 2 varieties: Pest that impact young plants and Pest that impact matured plants.

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

Agrotis ipsilon: It is typically called Cut worm. This bug affects the seedlings and young Jatropha plants. If the plant is impacted by the cutworm, the stem gets cut nearer to the soil surface area and this will diminished the plant completely.

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

Scarabaeid Beetle: This insect damages the root of the young plant. Initially, the larva consumes the organic matters present in the soil and after that pertains to the root. The larva attack may kill the entire plant.

Control: The plant with excellent resistance power can overcome the insect. For heavy attack, insecticides with parts 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 could totally eliminate the plants.

Control: Insecticides are utilized to control the insects.

Grasshopper: This is typical bug discovered in several plants. Valanga nigricornis and Locusta migratoria extensively assaults the plant. The insect typically attacks the young plant.

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

Pest observed in mature plants:

Pest of Stem: Ostrinia furnacalis, Xyleborus spp.

Ostrinia furnacalis and Xyleborus: This insect damages the Jatropha stem and it is commonly 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 usually used to manage this insect is carbofuran.

Pest of leaf: The common insects 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 short period. 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 attacked leaves.

Needle Caterpillar: This caterpillar is covered with spines and produces a burning sensation when permitted to exposure to skin as it produces certain chemical substance. Initially the bug crowded in the leaf and then spread out all over the plant when it ages.

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

Leaf Hopper: This pest is discovered mainly in tropical and subtropical areas. The pest targets the leaf and sucks all the nutrients of the leaf and gets curls at the suggestion. Later, the entire 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 recognized when the leaf become yellow-colored, shrinks, reddens and fall down. The pest can likewise be spread out through fallen leaves.

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

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

Chrysocoris javanus, Tip borer caterpillar.

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

The poisonous enzyme in the plant diminishes 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 flowering season and this pest 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 pointers.

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