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Messages - SaundraPar

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Introduce Yourself / Pests Of Jatropha
« on: January 11, 2025, 02:30:46 pm »

Jatropha Curcas is acquiring value commercially as the demand of fossil fuels increases enormously and likewise Jatropha is an eco-friendly energy plantation. Plantation of this plant is considered to be an exceptional fuel alternative and it is likewise very economical compared to other fuels. Recently, Jatropha is facing some trouble with bugs and illness. The insects are classified into 2 varieties: Pest that impact young plants and Pest that impact developed plants.


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


Agrotis ipsilon: It is commonly called Cut worm. This insect 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 choosing the larva discovered around the plants or by mixing the bran, sawdust with insecticides.


Scarabaeid Beetle: This insect ruins the root of the young plant. Initially, the larva consumes the raw materials present in the soil and after that comes to the root. The larva attack might kill the whole plant.


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


Army worm: Spodoptera litura presence can be recognized by biting in the leaves. The extreme infection could completely eliminate the plants.


Control: Insecticides are utilized to control the insects.


Grasshopper: This prevails bug discovered in several plants. Valanga nigricornis and Locusta migratoria extensively assaults the plant. The insect typically 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 bug harms the Jatropha stem and it is extensively seen in Indonesia. The stem assaulted by this pest generally drop. The presence can be recognized by the larva penetration hole at the stem.


Control: The Insecticide generally utilized to control this bug is carbofuran.


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


Leaf Caterpillar: This insect can eat all the leaves of the plant simply put duration. The quality and yield of the seeds get lowered due to the heavy attack.


Control: This can be controlled by picking 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 allowed to exposure to skin as it produces specific chemical compound. Initially the insect crowded in the leaf and after that spread all over the plant when it ages.


Control: Manually, the pest can be eliminated just by soaking it in water or kerosene. The heavy attack can be controlled by spraying organophosphate insecticides.


Leaf Hopper: This insect is discovered mostly in tropical and subtropical areas. The insect targets the leaf and sucks all the nutrients of the leaf and gets curls at the tip. Later, the whole 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 entire plant weak. The pest existence can be identified when the leaf become yellow-colored, diminishes, reddens and fall down. The pest can also be spread through fallen leaves.


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


Some dreadful bug which attacks flower and fruit are, Stink bug (Nezara viridula)


Chrysocoris javanus, Tip borer caterpillar.


Stink Bug: Sting bug is a serious pest which attacks the plant during blossom period so the crop yield entirely drops. This insect is seen around the tropical region.


The harmful enzyme in the plant shrinks the whole plant.


Control: Insecticides advised for this bug is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.


Tip borer caterpillar: The bugs commonly happens attacks the plant in flowering season and this bug is seen extensively in tropical areas. The female bug laid the eggs on the tender part of the plant and the young larvae feed the young fruits and plant suggestions.


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

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