Jatropha Curcas is gaining value commercially as the need of nonrenewable fuel sources increases enormously and also Jatropha is an environment-friendly energy plantation. Plantation of this plant is considered to be an excellent fuel substitute and it is also very cost-effective compared to other fuels. Recently, Jatropha is dealing with some trouble with bugs and diseases. The pests are categorized into two varieties: Pest that impact young plants and Pest that plants.
Young plant pests: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is commonly called Cut worm. This pest affects the seedlings and young Jatropha plants. If the plant is impacted by the cutworm, the stem gets cut nearer to the soil surface and this will shrunk the plant entirely.
Control: This pest can be managed by picking the larva found 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 natural matters present in the soil and after that concerns the root. The larva attack may kill the entire plant.
Control: The plant with great resistance power can overcome the insect. For heavy attack, insecticides with elements carbosulfan and carbofuran can be used to eliminate the insect.
Army worm: Spodoptera litura existence can be recognized by biting in the leaves. The serious infection might entirely eliminate the plants.
Control: Insecticides are used to control the insects.
Grasshopper: This prevails bug found in several plants. Valanga nigricornis and Locusta migratoria commonly attacks the plant. The insect often 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 harms the Jatropha stem and it is extensively seen in Indonesia. The stem assaulted by this bug usually drop. The existence can be identified by the larva penetration hole at the stem.
Control: The Insecticide usually utilized to control 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 pest can eat all the leaves of the plant simply put duration. The quality and yield of the seeds get minimized due to the heavy attack.
Control: This can be controlled by choosing the old larvae around the surface area and discarding the attacked leaves.
Needle Caterpillar: This caterpillar is covered with spines and produces a burning feeling when enabled to exposure to skin as it produces specific chemical substance. Initially the insect crowded in the leaf and then 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 pest is found mostly in tropical and subtropical areas. The insect targets the leaf and sucks all the nutrients of the leaf and gets curls at the idea. Later, the whole 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 entire plant weak. The bug existence can be determined when the leaf ended up being yellow-colored, diminishes, reddens and fall down. The bug can also be spread through fallen leaves.
Control: Some preventive measures can be simulated appropriate 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 insect which assaults the plant during blossom duration so the crop yield totally falls down. This bug is seen around the tropical area.
The hazardous 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 bugs frequently occurs attacks the plant in blooming season and this insect is seen commonly 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 attacked seeds are advised to burn. The insecticides like monocrotophos and bensultap are sprayed at the flowering season.
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Pests Of Jatropha
roslynhoutz88 edited this page 2025-01-12 03:29:11 +00:00