Pests Of Jatropha

Jatropha Curcas is getting importance commercially as the demand of fossil fuels increases greatly and likewise Jatropha is an eco-friendly energy plantation. Plantation of this plant is considered to be an exceptional fuel replacement and it is also very economical compared to other fuels. Recently, Jatropha is facing some problem with pests and illness. The bugs are categorized into 2 varieties: Pest that affect young plants and Pest that affect grown plants.

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

Agrotis ipsilon: It is frequently called Cut worm. This bug impacts 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 diminished the plant entirely.

Control: This pest can be controlled by the larva found around the plants or by blending the bran, sawdust with insecticides.

Scarabaeid Beetle: This pest damages the root of the young plant. Initially, the larva takes in the organic matters present in the soil and then concerns the root. The larva attack may kill the entire plant.

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

Army worm: Spodoptera litura presence can be determined by biting in the leaves. The extreme infection might entirely kill the plants.

Control: Insecticides are utilized to manage the bugs.

Grasshopper: This prevails bug discovered in numerous plants. Valanga nigricornis and Locusta migratoria extensively attacks the plant. The bug frequently assaults the young plant.

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

Pest observed in fully grown plants:

Pest of Stem: Ostrinia furnacalis, Xyleborus spp.

Ostrinia furnacalis and Xyleborus: This insect harms the Jatropha stem and it is widely seen in Indonesia. The stem attacked by this bug generally fall down. The presence can be determined by the larva penetration hole at the stem.

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

Pest of leaf: The common 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 in short period. The quality and yield of the seeds get minimized due to the heavy attack.

Control: This can be controlled by selecting the old larvae around the surface and tossing away the assaulted leaves.

Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning feeling when enabled to contact with skin as it produces certain chemical compound. Initially the insect crowded in the leaf and after that spread all over the plant when it ages.

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

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

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

Mite: Mite likewise assaults the leaf and makes the entire plant weak. The pest existence can be determined when the leaf ended up being yellowish, diminishes, reddens and drop. The insect can also be spread through fallen leaves.

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

Some dreadful bug 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 during blossom duration so the crop yield totally falls down. This insect is seen around the tropical region.

The toxic enzyme in the plant diminishes the entire plant.

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

Tip borer caterpillar: The bugs commonly takes place attacks the plant in flowering season and this insect is seen commonly 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 recommended to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.