Pests Of Jatropha

Jatropha Curcas is getting importance commercially as the need 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 exceptional fuel alternative and it is also very affordable compared to other fuels. Recently, Jatropha is facing some problem with insects and diseases. The pests are classified into 2 ranges: Pest that affect young plants and Pest that impact matured plants.

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

Agrotis ipsilon: It is typically known 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 entirely.

Control: This bug can be managed by picking the larva discovered around the plants or by blending the bran, sawdust with insecticides.

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

Control: The plant with excellent resistance power can overcome the pest. For heavy attack, insecticides with components carbosulfan and carbofuran can be used to kill the insect.

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

Control: Insecticides are used to manage the bugs.

Grasshopper: This is common pest discovered in a number of plants. Valanga nigricornis and Locusta migratoria extensively attacks the plant. The pest often assaults the young plant.

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

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 assaulted by this insect typically drop. The existence can be identified by the larva penetration hole at the stem.

Control: The Insecticide usually utilized to manage this insect is carbofuran.

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

Leaf Caterpillar: This pest can consume all the leaves of the plant simply put period. The quality and yield of the seeds get decreased due to the heavy attack.

Control: This can be controlled 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 experience when allowed to call with skin as it produces specific chemical substance. Initially the insect crowded in the leaf and then spread out all over the plant when it gets older.

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

Leaf Hopper: This insect is found primarily in tropical and subtropical areas. The bug targets the leaf and sucks all the nutrients of the leaf and gets curls at the suggestion. Later, the entire leaf dry and die.

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 whole plant weak. The insect presence can be recognized when the leaf ended up being yellow-colored, shrinks, reddens and fall down. The pest can also be spread out through fallen leaves.

Control: Some preventive procedures can be simulated proper 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 insect which attacks the plant throughout blossom duration so the crop yield totally drops. This insect is seen around the tropical region.

The harmful enzyme in the plant shrinks the entire plant.

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

Tip borer caterpillar: The bugs typically happens attacks the plant in flowering season and this insect is seen widely 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 tips.

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