Pests Of Jatropha

Jatropha Curcas is gaining value commercially as the demand of fossil fuels increases tremendously and also Jatropha is an environmentally friendly energy plantation. Plantation of this plant is considered to be an exceptional fuel alternative and it is also very economical compared to other fuels. Recently, Jatropha is dealing with some difficulty with pests and illness. The pests are classified into 2 ranges: Pest that affect young plants and Pest that affect developed plants.


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


Agrotis ipsilon: It is typically called Cut worm. This insect impacts the seedlings and young Jatropha plants. If the plant is affected by the cutworm, the stem gets cut nearer to the soil surface area and this will shrunk the plant totally.


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


Scarabaeid Beetle: This bug ruins the root of the young plant. Initially, the larva takes in the organic matters present in the soil and after that pertains to the root. The larva attack may kill the whole plant.


Control: The plant with good resistance power can get rid of the pest. For heavy attack, insecticides with components carbosulfan and carbofuran can be utilized to eliminate the pest.


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


Control: Insecticides are used to manage the pests.


Grasshopper: This prevails insect found in several plants. Valanga nigricornis and Locusta migratoria widely attacks the plant. The pest often attacks 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 insect harms the Jatropha stem and it is commonly seen in Indonesia. The stem attacked by this bug typically drop. The existence can be recognized by the larva penetration hole at the stem.


Control: The Insecticide typically used 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 insect can consume all the leaves of the plant simply put period. The quality and yield of the seeds get reduced due to the heavy attack.


Control: This can be controlled by selecting the old larvae around the surface area and getting rid of the assaulted leaves.


Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning experience when enabled to call with skin as it produces certain chemical compound. Initially the pest crowded in the leaf and after that spread out all over the plant when it grows older.


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


Leaf Hopper: This pest is found mainly in tropical and subtropical areas. The insect 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 bug presence can be recognized when the leaf become yellowish, diminishes, reddens and drop. The bug can likewise 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 awful pest which assaults flower and fruit are, Stink bug (Nezara viridula)


Chrysocoris javanus, Tip borer caterpillar.


Stink Bug: Sting bug is a severe pest which assaults the plant throughout bloom period so the crop yield entirely falls down. This pest is seen around the tropical region.


The toxic enzyme in the plant shrinks the whole plant.


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


Tip borer caterpillar: The bugs frequently takes place attacks the plant in blooming season and this pest is seen extensively in tropical regions. The female insect laid the eggs on the tender part of the plant and the young larvae feed the young fruits and plant ideas.


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