Thrips – Gramophone

Control measures of thrips in watermelon

16/03/2021 Tuesday March 16th, 2021

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.

Keep Chilli plants safe from Thrips attack

20/05/2020 Tuesday January 12th, 2021

Keep Chili plants safe from Thrips attack

Thrips insect both adult and nymph cause damage to plants.
Their adults are small, thin, and have brown feathers, the same nymphs are of a pale size.
Wrinkles are seen in the leaves of Chili infected with thrips and these leaves turn upwards.
In the initial stage stop the growth of plants, production of flowers, and production of fruits.
To control this, spray Profenophos 50% EC @ 30 ml or Acephate 75% SP @ 18 gm or Fipronil 5% SC @ 25 ml mixed with 15 liters of water.

Pest attacks may occur in the change of weather

01/04/2020

Due to the change in the weather, many types of pests can attack crops because the moist environment condition is suitable for it.
There is a possibility of attack of Red Beetle insect in Summer Cucurbits vegetables, if the large number of this insect then spraying of Cypermethrin 4% EC + Profenophos 40% EC 400 ml or Bifenthrin 10% EC 200 ml or Dichlorovos 76 EC 300 ml / acre.
Spraying Thiamethoxam 25 WG 5 gm/ 15 liters of water in the okra to control the sucking insect such as white fly, aphid, jassid etc.
There is a high possibility of Thrips in Onion crop so spraying Profenophos 50 EC @ 45 ml or Lambda cyhalothrin 4.9% CS @ 20 ml or Spinosed @ 10 ml or Fipronil 5 SC @ 15 liters water per acre.
Use 0.5 ml mixture with insecticide in 15 liters of water, so that the insecticide is absorbed by the plants properly.

How to manage thrips in onion crop?

31/03/2020 Tuesday January 12th, 2021

It is a small insect which causes the most damage to the onion crop. Both its infant and adults suck the juice by hiding it in the cheekbones of the leaves. This forms yellow-white spots on the leaves, and in the later stages, the leaves shrink. This insect is yellow in their initial stages which turns dark brown later. Its lifespan is of 8–10 days. Adults live in a dormant state on an onion field, on the grass and other plants. In winter, thrips go into tubers and act as a source of infection the next year. These pests appear in large numbers on onion tubers during March-April. They suck the juice from leaves which makes them spiral and limits the plant’s growth. Sometimes their infestation remains on the tubers even during the storage.

Preventive measures –

-For control of thrips in onion, deep ploughing should be done in summer.

-Do not use nitrogen fertilizer in excess.

–Spray Profenophos 50 E.C. @ 45 ml or lambda-cyhalothrin 4.9% c.s. @ 20 ml or spinosed @ 10 ml or fipronil 5 s.c. with 15 litres of water per acre.

Management of Thrips in Cotton

28/08/2019

Management of Thrips in Cotton:-

Nature of Damage of Thrips:-

Nymphs and adults lacerate the tissue and suck the sap from the upper and lower surfaces of leaves.They inject saliva and suck the lysed contents of plant cells resulting in silvery or brown necrotic spots.
Seedlings infested with thrips grow slow and the leaves become wrinkled curl upwards and distorted with white shiny patches.
Rusty appearances in patches develop on under surface of leaves.
Higher infestation during vegetative crop growth results in late bud formation.
During the fruiting phase there is premature dropping of squares and the crop maturity is delayed combined with yield reduction.
The feeding by thrips on the developing bolls late in the season cause spots or wounds on the ripening of the ball or the quality of the seed.

Management:-

Seed treatment – Imidacloprid 60 FS @ 10 ml/kg or thiamethoxam 70 WS @ 5 g/kg seeds applied as seed treatment are efficient in suppressing the population of other sucking pest on cotton seedling.
Maintaining weed free conditions in cotton field from the spread of development of thrips.
Insecticidal options should be made when thrips infection results in high grade injury during clear sky period with no anticipated rains.
Spray of NSKE prepared on farm or crude neem oil spray @ 75 ml per pump suppress thrips population during pre squaring crop stage in both cases detergent / soap powder @ 1 gm / litre of spray fluid is to be added for getting uniform spray suspension.
Chemical Spray:- Spray any one Following insecticide.

Profenofos 50% EC @ 50 ml/ Pump.
Acetamiprid 20 SP @ 15 gm/Pump.
Imidacloprid 17.8% SL @ 7 ml/pump.
Thiamethoxam 25% WG @ 5 gm/pump.
Fipronil 5% SC @ 40 ml/Pump.

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Control of thrips in moong

12/03/2019 Tuesday January 12th, 2021

Plants infected with thrips develop spotted appearance on leaves which turn pale-white blotches due to drainage of sap. Due to thrips attack reduces production.
For effective control spray profenofos 50% EC 400 ml/acre or fipronil 5% SC 400 ml/acre or thiamethoxam 25% SG 200 gm/acre after every 10 days interval.
Spray neem seed kernal extract (NSKE) 5% or triazophos @ 350 ml/acre.

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Thrips control in tomato

23/02/2019 Tuesday January 12th, 2021

Plants infected with thrips develop spotted appearance on leaves which turn pale-white blotches due to drainage of sap. Due to thrips attack reduces production.
For effective control, spray Profenofos 3 Ml/litre of Water or fipronil 5% SC 3 ml/litre of Water or Thiamethoxam 0.5 Gm/litre of Water after every 10 days interval.

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Control measures of thrips in muskmelon

21/02/2019 Tuesday January 12th, 2021

Both adults and nymphs damage the crop lacerate the leaf tissue and suck the sap.
Tender shoots, buds, and flowers are attacked as a result they become twisted and deformed, upward curling of leaves.
Spray Dimethoate 30% EC @ 250 ml/acre or Profenophos 50% EC @ 400 ml/acre or Fipronil 5% SC @ 400 ml/acre at fortnightly interval.
Pesticide spraying should be changed at every 15 days interval.

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Management of Chilli Thrips

30/07/2018

Management of Chilli thrips

Symptoms:-

The infested leaves develop crinkles and curl upwards.
Elongated petiole.
Buds become brittle and drop down.
Early stage, infestation leads to stunted growth and flower production, fruit set are arrested.

Management:-

Do not grow chilli after sorghum.
Do not follow chilli and onion mixed crop.
Sprinkle water over the seedlings to check the multiplication of thrips.
Treat seeds with imidacloprid 70% WS @ 12 g/kg of seed.
Apply carbofuran 3% G @ 33 kg/ha or phorate 10 % G @ 10 kg/ha or
Spray any one of the following insecticide.

Insecticide	Dose
Imidacloprid 17.8 % SL	100 ml/acre.
Dimethoate 30 % EC	300 ml/acre.
Emamectin benzoate 5 % SG	100 gm/acre
Profanofos 50% E.C.	500 ml/acre
Fipronil 5 % SC	500 ml/acre.
Spinosad 45 % SC	70 ml/acre.

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Control of Thrips

16/02/2018

Plants infected with thrips develop spotted appearance on leaves which turn pale-white blotches due to drainage of sap. Due to thrips attack reduces production. For effective control spray Profenofos 400 ml /acre or fipronil 5% SC 400 ml/acre or Thaimethoxam 100 gm/acre after every 10 days interval.

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