Pests Of Jatropha

Jatropha Curcas is getting importance commercially as the demand of nonrenewable fuel sources increases significantly and also Jatropha is an environmentally friendly energy plantation. Plantation of this plant is thought about to be an excellent fuel replacement and it is also very cost-effective compared to other fuels. Recently, Jatropha is dealing with some trouble with insects and illness. The insects are classified into two ranges: Pest that impact young plants and Pest that impact matured plants.

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

Agrotis ipsilon: It is commonly understood as Cut worm. This pest impacts 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 shrunk the plant entirely.

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

Scarabaeid Beetle: This bug ruins the root of the young plant. Initially, the larva consumes the raw materials present in the soil and then concerns the root. The larva attack may eliminate the entire plant.

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

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

Control: Insecticides are used to control the insects.

Grasshopper: This prevails bug discovered in numerous plants. Valanga nigricornis and Locusta migratoria widely assaults the plant. The bug 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 harms the Jatropha stem and it is extensively seen in Indonesia. The stem assaulted by this insect usually fall down. The existence can be determined by the larva penetration hole at the stem.

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

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

Leaf Caterpillar: This insect can eat all the leaves of the plant in other words 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 area and discarding the attacked leaves.

Needle Caterpillar: This caterpillar is covered with spines and produces a burning sensation when permitted to contact with skin as it produces specific chemical compound. Initially the insect crowded in the leaf and after that spread out all over the plant when it ages.

Control: Manually, the pest can be killed only by soaking it in water or . The heavy attack can be controlled 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 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 also assaults the leaf and makes the entire plant weak. The pest presence can be recognized when the leaf ended up being yellow-colored, diminishes, reddens and drop. The insect can also be spread through fallen leaves.

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

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

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a serious pest which assaults the plant throughout bloom duration so the crop yield totally falls down. This pest is seen around the tropical area.

The harmful enzyme in the plant shrinks the whole plant.

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

Tip borer caterpillar: The bugs typically takes place attacks the plant in blooming season and this pest is seen widely in tropical areas. The female pest laid the eggs on the tender part of the plant and the young larvae feed the young fruits and plant pointers.

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