Jatropha Curcas is gaining value commercially as the demand of nonrenewable fuel sources increases tremendously and also Jatropha is an eco-friendly energy plantation. Plantation of this plant is considered to be an excellent fuel substitute and it is likewise really cost-effective compared to other fuels. Recently, jatropha curcas is dealing with some trouble with bugs and diseases. The bugs are classified into two varieties: 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 called Cut worm. This bug affects the seedlings and young Jatropha plants. If the plant is impacted by the cutworm, the stem gets cut nearer to the soil surface area and this will shrunk the plant totally.
Control: This pest can be controlled by picking the larva discovered around the plants or by blending the bran, sawdust with insecticides.
Beetle: This pest ruins the root of the young plant. Initially, the larva consumes the organic matters present in the soil and then pertains to the root. The larva attack may kill the entire plant.
Control: The plant with good resistance power can get rid of the insect. For heavy attack, insecticides with components carbosulfan and carbofuran can be utilized to kill the insect.
Army worm: Spodoptera litura existence can be determined by biting in the leaves. The extreme infection could entirely eliminate the plants.
Control: Insecticides are utilized to control the insects.
Grasshopper: This is common bug discovered in numerous plants. Valanga nigricornis and Locusta migratoria commonly attacks the plant. The pest typically 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 pest damages the jatropha curcas stem and it is commonly seen in Indonesia. The stem assaulted by this bug normally drop. The presence can be determined by the larva penetration hole at the stem.
Control: The Insecticide usually used to control this pest is carbofuran.
Pest of leaf: The typical bugs observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.
Leaf Caterpillar: This insect can eat all the leaves of the plant in other words period. The quality and yield of the seeds get reduced due to the heavy attack.
Control: This can be controlled by picking the old larvae around the surface area and discarding the assaulted leaves.
Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning sensation when enabled to call with skin as it produces particular chemical substance. Initially the pest crowded in the leaf and after that spread all over the plant when it ages.
Control: Manually, the insect can be killed only by soaking it in water or kerosene. The heavy attack can be controlled by spraying organophosphate insecticides.
Leaf Hopper: This pest is found mainly in tropical and subtropical areas. The bug targets the leaf and sucks all the nutrients of the leaf and gets curls at the suggestion. Later, the whole leaf dry and pass away.
Control: The heavy attack can be managed by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.
Mite: Mite likewise assaults the leaf and makes the whole plant weak. The pest existence can be identified when the leaf become yellow-colored, diminishes, reddens and fall down. The pest can likewise be spread through fallen leaves.
Control: Some preventive steps can be simulated proper sanitation and burning the fallen leaves. Heavy attack can be treated by spraying insecticides.
Some terrible bug which attacks 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 throughout blossom duration so the crop yield entirely drops. This pest is seen around the tropical area.
The harmful enzyme in the plant diminishes the entire plant.
Control: Insecticides advised for this pest is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The bugs commonly happens attacks the plant in blooming season and this pest is seen widely in tropical areas. The female pest 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 flowering season.
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Pests Of Jatropha
elviracrespin4 edited this page 2025-01-12 10:40:48 +08:00