Jatropha Curcas is getting value commercially as the demand of fossil fuels increases tremendously and likewise Jatropha is an environmentally friendly energy plantation. Plantation of this plant is considered to be an excellent fuel substitute and it is also really affordable compared to other fuels. Recently, jatropha curcas is facing some difficulty with bugs and illness. The pests are classified into two ranges: Pest that impact young plants and Pest that affect developed plants.
Young plant bugs: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is frequently understood 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 totally.
Control: This bug can be managed by choosing the larva discovered around the plants or by mixing the bran, sawdust with insecticides.
Scarabaeid Beetle: This insect destroys the root of the young plant. Initially, the larva takes in the raw materials 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 get rid of the bug. For heavy attack, insecticides with parts carbosulfan and carbofuran can be used to eliminate the insect.
Army worm: Spodoptera litura presence can be identified by biting in the leaves. The serious infection could totally eliminate the plants.
Control: Insecticides are used to control the insects.
Grasshopper: This is typical insect found in several plants. Valanga nigricornis and Locusta migratoria widely assaults the plant. The pest typically attacks 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 bug harms the jatropha curcas stem and it is widely seen in Indonesia. The stem assaulted by this bug normally drop. The existence can be recognized by the larva penetration hole at the stem.
Control: The Insecticide typically used to manage this pest is carbofuran.
Pest of leaf: The common bugs observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.
Leaf Caterpillar: This bug can eat all the leaves of the plant in other words period. The quality and yield of the seeds get decreased due to the heavy attack.
Control: This can be controlled by picking the old larvae around the surface and tossing away the attacked leaves.
Needle Caterpillar: This caterpillar is covered with spines and produces a burning experience when enabled to call with skin as it produces certain chemical substance. Initially the pest crowded in the leaf and then spread out all over the plant when it grows older.
Control: Manually, the insect can be eliminated just by soaking it in water or kerosene. The heavy attack can be managed by spraying organophosphate insecticides.
Leaf Hopper: This pest is found mostly in tropical and subtropical regions. The insect targets the leaf and sucks all the nutrients of the leaf and gets curls at the suggestion. 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 also assaults the leaf and makes the entire plant weak. The bug presence can be determined when the leaf become yellow-colored, diminishes, turns red and fall down. The insect can also be spread out through fallen leaves.
Control: Some preventive steps can be simulated proper sanitation and burning the fallen leaves. can be dealt with by spraying insecticides.
Some terrible insect which assaults flower and fruit are, Stink bug (Nezara viridula)
Chrysocoris javanus, Tip borer caterpillar.
Stink Bug: Sting bug is a serious insect which assaults the plant during blossom period so the crop yield entirely drops. This insect is seen around the tropical region.
The hazardous enzyme in the plant diminishes the entire plant.
Control: Insecticides recommended for this pest is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The bugs typically happens attacks the plant in flowering season and this pest is seen commonly 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 attacked seeds are suggested to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.
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Pests Of Jatropha
Cara Lamothe edited this page 2025-01-12 02:59:28 +08:00