How to care dead heart disease of rice is also known as the paddy stem borer that’s common named called whait rice borer .
Three types of maggots damage rice crops world wide. For example, yellow saffron. Black-headed majra and pink majra.
These insects are named after the color of their worms. Although their shape and life history differ slightly,
The damage patterns and suppression methods are similar. The yellow maggot mainly attacks more. The adult yellow caterpillar is a type of moth.
Adult females have two black spots on their wings. The midpoint of the male moth is not obvious. But there are 7-8 indistinct spots on the back side of the fan.
How To Care Dead Heart Disease of Rice Type of Damage
The yellow maggot egg has a light gray coating on it. If you see a pile of eggs of the caterpillar on the tree,
You should understand that there is a possibility of damage to the tree. Infested with mealybugs, the stem may contain worms,
Feeding marks and feces, or the outside of the stem may be discolored and have holes for the worms to exit. All spider moths are nocturnal.
During the day they hide under leaves. They move only at night in the dark. They are all attracted to light.
How to care dead heart disease of rice is The maggots start feeding from inside the stem and gradually eat away at the base of the plant’s leaves.
As a result, dig leaves die. In case of such damage, dead digs can be seen before the fruiting of the tree. After the pods are damaged,
The entire pods dry up if the caterpillars damage them. It is called ‘white head’, ‘dead head’ or ‘white head’. If dieback occurs prior to flowering,
The plant may partially compensate for the loss by producing additional buds. How to care dead heart disease Sometimes wounds
Caused by maggots can appear as dead dig rat damage. The dead dig comes out easily when pulled. After hatching, the maggots slowly enter the stem.
In the first stage of the worm, many pink and black-headed caterpillars can be seen gathering in a bunch of rice.
How to care dead heart disease But caterpillars and pupae can be found anywhere on the stem. If there are many moths around the light,
it means that the moths have started laying eggs in the field. Examples of drought or rodent damage may appear as white heads.
How to care dead heart disease If the worm eats inside the leaf sheath and does not completely cut the inner part of the stem,
The rice plant is partially damaged and some of the rice at the base of the ear is crushed. The yellow caterpillar lays its eggs on the upper part of
The leaf and the pink caterpillar lays its eggs on the inside of the leaf sheath. The egg mass of the yellow caterpillar is covered with a light gray coating.
Blackhead moth eggs have a white coating that looks like fish scales, which gradually turns dark before hatching. After hatching from the eggs,
The caterpillars slowly enter the stem. In the first stage of the worm, many pink and black-headed caterpillars can be seen gathering in a bunch of rice.
Prerequisites
How to care dead heart disease the Plant saplings of the right age. Plant at proper spacing. Immediately after planting,
Dig enough stakes in the ground to allow birds to perch and eat insects. Test the soil and add balanced fertilizer to the land.
Extent of Damage
How to care dead heart disease Studies have shown that about 70-80% of the crop of paddy field can be lost if the corn borer is not controlled in time.
Applying more urea fertilizer. The maximum temperature is 17-30°C and at all stages of rice if the temperature does not exceed 35°C.
Warm and humid weather i.e. 80-90% relative humidity is suitable for the growth of these insects.
Biological and Mechanical Control
How to care dead heart disease During regular field monitoring, collecting and destroying the moths and eggs of the moths can reduce the number and damage of the moths.
Moths can be caught and destroyed with nets until Thor arrives. When adult moth infestations are high,
Light traps can be set 200-300 meters away from the paddy field to collect and kill the moths.
How to Care Dead Heart Disease Chemical Suppression Methods
How to care dead heart disease If 10-15 dead buds out of 100 or 5 dead grains are found in the paddy land then the approved insecticides should be applied at safe level.
Will be Thiomethoxam (20%)+ Chloraniliprole (20%) Virtaco 40 W G (AP-1618) @ 10 g/bigha or Carbosulfan Marshall (AP-91)/Freedom (AP-1732) 20 E C at 200 ml per bigha.
Cartap Suntap (AP-217)/Care 50 S p (AP-254) @ 2.4 g/l. the water Fenitrothion Fenitox (AP-4)/ Sumithion (AP-540)/ imethion (AP-261) 50 E C at the rate of 134 ml per bigha
or Quinalfos Vital 25 E C (AP-1491) or Corlux 25 E C (AP-391) @ 200 ml/ha 15 days after transplanting of paddy seedlings During
The first installment of urea fertilizer application, Briefer 5 g per bigha with urea at 1.3 kg and Sulphox 80 W G at 1 kg per bigha should be applied.
40-45 days after planting Reload 18 S C 5 ml per 10 liters of water should be sprayed on 5 percent of the land so that the maggots do not damage the seedlings. 100 ml per acre.
Apart from this, other effective insecticides for control of maggots are Acimix 55 EC 10 ml mixed with 10 liters of water and sprayed on 5 percent land. 200 ml/acre.
Or Lamix 24.7 SC should be mixed with 20 ml per 10 liters of water and sprayed on 5 percent land. 400 ml/acre.
Or mix 10 ml of Gola 48 EC per 10 liters of water and spray 5 percent of the land. 200 ml/acre.
Or Benthium 40 W G 2.5 g per 10 liters of water should be mixed and sprayed on 5 percent land. 50 g/acre.
Reference:
https://www.sciencedirect.com/science/article/abs/pii/S0261219405001924