Pests Of Jatropha

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Jatropha Curcas is gaining value commercially as the need of fossil fuels increases significantly and likewise Jatropha is an environmentally friendly energy plantation. Plantation of this plant is thought about to be an exceptional fuel substitute and it is likewise extremely affordable compared to other fuels. Recently, Jatropha is facing some trouble with insects and illness. The pests are categorized into 2 varieties: Pest that impact young plants and Pest that affect grown plants.


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


Agrotis ipsilon: It is 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 diminished the plant entirely.


Control: This pest can be controlled by choosing the larva found 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 natural matters present in the soil and then pertains to the root. The larva attack may eliminate the entire plant.


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


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


Control: Insecticides are used to control the insects.


Grasshopper: This is common pest discovered in several plants. Valanga nigricornis and Locusta migratoria widely assaults the plant. The pest frequently 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 bug harms the Jatropha stem and it is extensively seen in Indonesia. The stem assaulted by this bug generally fall down. The presence can be identified by the larva penetration hole at the stem.


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


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


Leaf Caterpillar: This bug 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 managed by choosing the old larvae around the surface and discarding the assaulted leaves.


Needle Caterpillar: This caterpillar is covered with spines and produces a burning experience when permitted to exposure to skin as it produces certain chemical compound. Initially the bug crowded in the leaf and then spread all over the plant when it ages.


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 bug is found mostly in tropical and subtropical areas. The bug targets the leaf and sucks all the nutrients of the leaf and gets curls at the pointer. Later, the whole 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 whole plant weak. The insect existence can be determined when the leaf become yellow-colored, shrinks, reddens and fall down. The bug can also be spread out through fallen leaves.


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


Some terrible insect which attacks 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 duration so the crop yield totally falls down. This bug is seen around the tropical area.


The toxic enzyme in the plant shrinks the entire plant.


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


Tip borer caterpillar: The pests commonly takes place attacks the plant in flowering season and this bug is seen widely 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 pointers.


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

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