Pests Of Jatropha

Jatropha Curcas is acquiring importance commercially as the need of fossil fuels increases enormously and also Jatropha is an eco-friendly energy plantation. Plantation of this plant is considered to be an excellent fuel replacement and it is likewise very affordable compared to other fuels. Recently, Jatropha is dealing with some trouble with bugs and illness. The bugs are categorized into two ranges: Pest that impact young plants and Pest that impact 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 shrunk the plant totally.


Control: This bug can be managed by choosing the larva found 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 raw materials present in the soil and then comes to the root. The larva attack might kill the whole plant.


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


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


Control: Insecticides are utilized to manage the pests.


Grasshopper: This prevails insect discovered in a number of plants. Valanga nigricornis and Locusta migratoria commonly assaults the plant. The insect typically assaults 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 pest harms the Jatropha stem and it is extensively seen in Indonesia. The stem attacked by this pest usually fall down. The presence can be recognized by the hole at the stem.


Control: The Insecticide generally utilized to control this insect is carbofuran.


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


Leaf Caterpillar: This bug can eat 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 managed by picking the old larvae around the surface area and throwing away the assaulted leaves.


Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning feeling when permitted to call with skin as it produces certain chemical substance. 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 eliminated only by soaking it in water or kerosene. The heavy attack can be managed by spraying organophosphate insecticides.


Leaf Hopper: This bug is discovered mainly in tropical and subtropical areas. The insect targets the leaf and sucks all the nutrients of the leaf and gets curls at the pointer. 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 attacks 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 bug can also be spread through fallen leaves.


Control: Some preventive steps can be done like proper 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 serious bug which assaults the plant during 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 advised for this pest is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.


Tip borer caterpillar: The pests typically happens attacks the plant in blooming season and this bug is seen commonly in tropical areas. The female bug laid the eggs on the tender part of the plant and the young larvae feed the young fruits and plant suggestions.


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