Horticulture
Horticulture :: Plantation Crops :: Palmyrah

Crop Protection

Pest and diseases of coconut are mostly found in Palmyra palm.  Since the slow-growing nature of the palm will obviously be less than the amount of the chemical liquid. When the palm-growing need for crop protection because the solution is to increase the size of the likely costs. The cost varies depending on the age of the palm to spray pesticides.

A. Pests of Palmyra palm

Rhinoceros beetle and termites caused great damage at the time of seed germination. Palms are attack and destroy these pests in the gradual escalation. When there is an increase in the number of insects in them lay eggs on palm leaves. Their attack can be prevented by keep the palm orchard cleanly. 

Tirunelveli, Tuticorin, Tirunelveli and Ramanathapuram districts from field studies conducted in animal Rhino beetles (oraicitas rainocaras) and leaf-eating caterpillar (opicina arinocella) insects are found in palm. Rhino beetles 5.0-16.5 percent of the offensive attack of leaf-eating caterpillar spotted 3.3-27.1 per cent.

Rhinoceros beetle ( oraicitas rainocaras )

Leaves base, apex leaves, young leaves and stem are will attack by adult  beetles. Inflorescences and spathe are vulnerable.  The area between the stem and the leaf axis 4 percent of malathion 250 grams of powder and sand mixed in equal quantities should apply. Mature beetle control pulled off by the hook. Beaded leaf prints in three rolls of young palms for 45 days and in a controlled manner. Castor oil cake used to isolated by placing the pots to soak attract and kill the adult beetle. Divide palm stems and soak them in patanir, beetle crash by placing the food poisoning. More commonly found in mature palms. For General cleaning spray pesticides.

Red palm weevil

Thin section of the stem base of the stem of young worms eating cause leaf drying in palms. Weevil struck pasty liquid emitted from the area. 
While removing leaves and leaf stem must refrain from any damage. Palm   are affected by leaf blight and removing withered prevent multiplication of the beetles. Malathion 50 percent of injuries, if any, in the trunk of the wet mixture of powder and tar should apply. Patanir and fruit yields in the absence of pesticides and 30 ml of water mixed with 10 ml mono kurottapas filled in polythene bags be paying itself. Enhance consumer welfare patanir, 45 days before making the application of pesticides should be stopped.

Black headed caterpillar

Young caterpillar eating exploiting chlorophyll of  palm leaves.  Acute effects of exposure to the cut leaf should be removed. Worm parasites (pirakonitukal, pettilitukal) Pupa parasites (yulopitukal) prey devouring appropriate periodic control by allowing the attack.  Manokurottapas for young seedlings or spraying of malathion to control these pests at a rate of 1 ml per liter of spray mixture.

B .Diseases of Palmyra palm

Despite coming from different types of diseases at different stages of palm struck against the palm of a chemical plant of the most prevalent (Phytoalexin) tend to have resistance to the disease.

Disease The fungus Found locations
Leaf spot Pertaliniya rerilatiyaytas Kerala
Leaf spot Kilatosporiyam poraci Maharashtra
Leaf spot Kirapiyola poraci West Bangladesh, Bihar, Uttar Pradesh, Maharashtra, Andhra Pradesh
Root and stem rot Meruliyas cimilis West Bangladesh
Leaf spot Pecalociya alniriyancis Madhya Pradesh
Blight Pecalociyalcis palmaram West Bangladesh, Bihar, Maharashtra, Tamil Nadu
Inflorescence rot Paittotora palmivora Andhra Pradesh, western Bangladesh, Karnataka
Tuber rot Raicoktaniya solani Tamil Nadu
Leaf rot Stikmina palmivora Tamil Nadu, Andhra Pradesh

In the palm diagnosed diseases 

The Tamil Nadu Agricultural University from 1994 to 1996 in the field studies carried out in the leaf (pesalociya palmaram) and leaf spot (stikmina palmivora) was able to learn the diseases were found. The impact of the leaf burn 12 - 62.6 per cent and 13.7- 50.9 per cent of leaf spot of diseases found.

Tuber rot ( raicaktaniya solani )

The change in color from golden to dark reaches tubers disease. Fluid exits. Crumbles easily when drilling. The disease struck the potatoes on white - matching gray fibrous growth.Palm seeds are extracted from fruits soak carbendazim by 0.1 percent after that in the solution for 24 hours when the tuber rot attacks decreased 61.0 per cent and seed germination to increase  20.1 per cent has been found. Trichoderma viride using the biocontrol fungicide control tuber rot.

Leaf spot:

Palm and young seedlings are develop highly vulnerable position. Brown leaf spots found throughout. Many spots will dry up and turn brown together.

Leaf blight:

All development stages are susceptible to leaf blight. Elongated Gray brown spots are seen in leaf midrib and margins. Several leaf spots are coagulate and cause Leaf blight disease. Bodo mixture of a per cent or copper oxy chloride 0.2 per cent of fungicide to be applied at the base of leaves. If find the disease in its early stage only can protect.

Inflorescence rot:

Inflorescence rot disease is widespread in southern India. Godavari and Krishna districts of Andhra Pradesh in 1907 to 2,15,229 dead palms Inflorescence rot stricken with the disease in 1921, and studies indicate that there is only 8.692 palms. Small dots appearing on the edges of leaves are spread inside. With the intensification of the stem rot disease attacks palms will die. The folded palm are burn immediately flushes, attacks of the disease seen on other palms of the outer leaves removed when they are burned to prevent further spread of the disease. Palms are by keeping the cleanliness of stem to avoid rotting.

Damages by Birds and Animals :

Set livestock fence to avoid the damage caused by animals. damages caused by livestock flowering stage occurs after 20-25 years. 

Source:Dr.V.Ponnuswami, PhD, PDF (Taiwan), Former Dean & Professor (Horticulture), Horticultural College & Research Institute, Tamil Nadu Agricultural University, Coimbatore

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Last Update January 2016

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