Tip of the day – Page 98

Control measures of thrips in watermelon

The nymph and adult thrips insect, suck the cell sap by scraping the leaves of watermelon plants, on the soft stalk, buds and flowers of the plant, it becomes curly because of thrips infestation. Due to its effect, the plants remain stunted.
To control thrips, spray Lambda Cyhalothrin 4.9% CS @ 200 ml/acre or Profenophos 50% EC @ 500 ml/acre or Fipronil 5% SC @ 400 ml/acre at 15 days interval.
Use the pesticide at an interval of 15 days.

This stage of green gram crop, has problems related to pest infestation, fungal diseases, and growth and development.
To overcome all these problems, in the green gram, it is very important to manage crops during 15-20 days.
To control insect infestation, spray Acetamiprid @ 20% SP@ 100 gram/acre
As a biological control, use Beauveria Bassiana @ 250 gram/acre.
Spray of Carbendazim 12% + Mancozeb 63% @ 300 gram/acre for control of fungal diseases
Use Pseudomonas fluorescens @ 250 gram/acre as a biological control of fungal diseases
For good crop growth and development, use vigormaxx gel @ 400 gram/acre + 19: 19: 19 @ 1 kg / acre as spray.

Green gram is cultivated on a large scale in many districts of Madhya Pradesh.
Green gram is included in the major pulses crops and it is a short duration crop with good production.
Farmers should pay special attention to weeds for about 20 to 30 days after sowing of Green gram.
Because in the early stages weeds cause heavy damages to the crop.
Farmers should use Pendimethalin 38.7 CS @ 700 ml/acre in as a pre-emergence herbicide in green gram crop.

In the watermelon crop, the flowering stage starts in 30–35 days.
In insect infestation, thrips, aphid leaf miner and many other sucking insects are attacks on watermelon crops .
In fungal and bacterial diseases, there is heavy infestation of diseases like leaf scorching,root rot, stem rot etc.
Use of Abamectin 1.9% EC @ 150 ml/acre for control of leafminers
Use Acetamiprid 20% SP @ 100 gram/acre for the control of sucking insects.
As a biological control of both types of insects, use Beauveria Bassiana @ 250 gram/acre.
Use Thiophanate Methyl 70% WP @ 300 gram/acre for control of all types of fungal diseases
As biological control of fungal diseases.use Pseudomonas fluorescens @ 250 gram/acre.

Molybdenum is a micronutrient that green gram crops require in very small amounts.
But its very small quantity is also very important for good growth of green gram crop.
Molybdenum plays a very important role in chemical changes in nitrogen in green gram crops.
Growth of green gram crops is not proper, due to deficiency of molybdenum.
Yellowing occurs on the edges of the leaves. Symptoms of molybdenum deficiency are similar to nitrogen deficiency.

Do not take samples from the land under the tree, from the meds or the low places, where there is a pile of manure, or where water gets collected.
For soil testing, take the sample in such a way that it represents the entire field, at least 500 grams of the sample must be taken.
Remove organic materials such as crop residue, dry leaves, stalks and grasses etc. from the top surface of the soil and choose samples from 8-10 different locations according to the area of the field.
Soil sampling should be done from the depth at which the root crop is taken.
Soil samples should be collected in a clean bucket or tagari etc.
Make sure to label the sample precisely.

Aphids are small, soft-bodied small insects that can be yellow, brown, green, or black.
They usually suck the sap from the plant by forming groups on the corners of small leaves and twigs and secrete sticky substance (honeydew), which increases the chances of fungal diseases.
Leaves and twigs may wither or become yellow due to severe infestation.
Spraying of Thiamethoxam 25% WG @ 100 gram/acre or Imidacloprid 17.8 %SL @ 100 ml/acre or Flonicamid 50% WG @ 60 gram/ acre to protect against aphid.
Use Beauveria Bassiana @ 250 gram/acre as biological treatment.

This is a seed borne disease ,and it’s caused by a fungus called ustilago segetum.
The infected seed appears to be healthy.
Symptoms of this disease are visible only when spikes are formed. In infected plants in spikes black powder ( spores) found instead of grains
Which also infects seeds produced in other healthy spikes by being suspended in the air.
Seed treatment is the best way to control this disease.
Apart from this, for the control of this disease use Kasugamycin 5% + Copper oxychloride 45% WP @ 300 gram/acre or Carbendazim 12% + Mancozeb 63% @ 600 gram/acre or Tebuconazole 10% + Sulfur 65% WG @ 500 gram/acre
Spray Pseudomonas fluorescens @ 250 gram/acre as a biological treatment.

In wheat crop rust disease is also known as ‘Gerua’
This disease has three types: yellow rust, black rust, brown rust.
In this disease yellow, black, and brown colored powder gets deposited on the leaves.
As the temperature drops, the infestation of this disease increases.
The accumulation of powder on the leaves deprives the leaves their ability to make food.
Due to which the leaves start drying greatly affecting the production.
For prevention of this disease use Hexaconazole 5% SC@ @ 400 ml/acre or Propiconazole 25% EC @ 200 ml/acre or Tebuconazole 25.9% EC @ 200 ml/acre
As a biological treatment use Trichoderma Viride @ 500 gram/acre or Pseudomonas Fluorescens @ 250gram/acre.

It is a common disease in garlic crops caused by Thrips insect, this disease heavily harms garlic in its main stages.
This insect begins by scratching the garlic leaves with its mouth, and after scratching the delicate part of the leaves, it sucks its cell sap . Thus it damages the plant by scratching and lapping.
This causes the leaves to curl. Gradually this problem increases, the leaves begin taking the shape of Jalebi. In this way, the plant dries hence the name Jalebi disease.
Use of the following products is necessary for the prevention of this disease.
Profenophos 50% EC @ 500 ml / acre or Acephate 75% SP @ 300 gram/acre or Lambda cyhalothrin 4.9% CS @ 250 ml/acre or Thiamethoxam 12.6% + Lambda cyhalothrin Spraying @ 9.5% ZC @ 80 ml/acre or Fipronil 40% + Imidacloprid 40% WG @ 40 gram/acre or Fipronil 5% SC @ 400 ml/acre or Acephate 50% + Imidacloprid 1.8% SP @ 400 gram/acre
Use Bavaria Bassiana @ 250 gram/acre as a biological treatment