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Crop Protection with vernacular Names

Crop Protection with vernacular Names
19
Jul

Earhead bug/ Gundhi bug

Order: Hemiptera

Family : Alydidae

Scientific name : Leptocorisa acuta

Local name:

File Courtesy: 
ZARS, Mandya
19
Jul

Control of Mealy bug

1.Practice proper sanitation. Clean tools after used. Avoid movements of working animals and yourself from infested to non-infested areas the same day.

2. Mealybugs can be transported from one area to another through farm tools and equipments, trellis materials, plant parts, and working animals .Infested plants and plant parts should not be used as mulch. These should be removed from fields and destroyed .

File Courtesy: 
ZARS, Mandya
19
Jul

Life stages of Mealy bug

Egg: The female lays numerous yellowish white eggs/ simply deposits nymphs in outer leaf sheaths.

Nymph: The newly hatched nymphs crowded within the waxy threads for 6-10 h before they disperse to various parts of the same plant. The pale yellowish nymph is active and crawls about the plant for a while and settled itself on the plant/ stem and turns dark yellow after a day. Body gets covered with waxy material on second day.

File Courtesy: 
ZARS, Mandya
19
Jul

Symptoms and Nature of damage of Mealy bug

Symptom of attack of Mealy bug: The infestation starts in plants one or two month after transplanting. Stunted, circular patches may be seen in the fields. If such plants are pulled out and teased the insects can be seen at the base of the leaves and leaf sheaths.

File Courtesy: 
ZARS, Mandya
Photo Courtesy: 
Mr. Y. Kondal Rao (DRR)
19
Jul

Mealy bug

Order: Hemiptera

Family : Pseudococcidae

Scientific name : Brevennia rehi

Local Name:

File Courtesy: 
ZARS, Mandya
19
Jul

Control of Whitebacked planthopper

1.Draining rice fields can be effective in reducing initial infestation levels. The field should be drained for 3 - 4 days when heavy infestations occur.

2. Provide alley ways in the main field. For provision of alley ways leave 30 cm gap after every 2m planting in main field.

3. Egg parasitoids: Anagrus sp, Gonatocerus sp., Oligosita spp.

Nymphal/adult parasitoids: Haplogonatopus sp., Ecthrodelphax fairchildii., Elenchus sp (Sterpsiptera), Hexamermis sp (Mermithid).

File Courtesy: 
ZARS, Mandya
19
Jul

Life stages of Whitebacked Planthopper

1. Egg: Cylindrical eggs are laid in groups when the rice plant is small but in the upper part of the rice plant when the plant is large. (They are laid with the micropylar end protruding from the tissue, the operculum is long and narrow. The eggs in a group are not sealed together by the material secreted by female.)

File Courtesy: 
ZARS, Mandya
19
Jul

Symptoms and Nature of damage of Whitebacked Plant hopper

Symptom of attack of Whitebacked planthopper:

1. Heavy infestation cause outer leaves of a hill to show burn symptoms.

2. Damage in the form of hopperburn appears uniformly in a rice field, whereas it appears as circular patches in the case of BPH.

Nature of damage of Whitebacked planthopper:

File Courtesy: 
ZARS, Mandya
Photo Courtesy: 
Mr. Y. Kondal Rao (DRR)
19
Jul

Whitebacked Planthopper

Order: Hemiptera

Family : Delphacidae

Scientific name : Sogatella furcifera

Local Nme:

File Courtesy: 
ZARS, Mandya
19
Jul

Control of Brown Plant hopper

• Spray carbaryl 50 WP @ 1500 g ha-1 or monocrotophos 36 WSC @ 1500 ml ha-1 or BPMC 50 EC @ 1000 ml ha-1 or acephate 50 WP @ 1200 g ha-1 or fipronil 5 SC @ 1000 ml ha-1 or imidacloprid 200 SL @ 125 ml ha-1 or ethofenprox 10 EC @ 750 ml ha-1 or thiamethoxam 25 WG @ 100 g ha-1 or clothianidin 50 WDG 30 g ha-1 or dust carbaryl 25 to 30 kg of the formulation ha-1.

• Repeat application if hopper population persists beyond a week after application.

• If 2 to 3 applications are needed, alternate the recommended insecticides.

File Courtesy: 
ZARS, Mandya
19
Jul

Life stages of Brown Plant hopper

Egg: Eggs are laid in a group of 2 to 12 in leaf sheath (near the plant base or in the ventral midribs of leaf blades). White, transparent, slender cylindrical and curved eggs are thrust in straight-line in two rows. (They are covered with a dome-shaped egg plug secreted by the female. Only the tips protrude from the plant surface.)

Nymph: Freshly hatched nymph is cottony white, 0.6 mm long and it turns purple-brown, 3.0 mm long in the fifth instar.

File Courtesy: 
ZARS, Mandya
19
Jul

Symptoms and Nature of damage of Brown Plant hopper

Symptom of attack of Brown Plant hopper: Symptoms will not be visible from outside in the early stages, but if we enter the field and tap the plants large number of this insect can be seen. They are visible only when the damage has been severe, the plants present a burnt up appearance, hopper burn, in circular patches.

File Courtesy: 
ZARS, Mandya
Photo Courtesy: 
Mr. Y. Kondal Rao (DRR)
19
Jul

Symptoms and Nature of damage of Brown Plant hopper

Symptom of attack of Brown Plant hopper: Symptoms will not be visible from outside in the early stages, but if we enter the field and tap the plants large number of this insect can be seen. They are visible only when the damage has been severe, the plants present a burnt up appearance, hopper burn, in circular patches.

File Courtesy: 
ZARS, Mandya
Photo Courtesy: 
Mr. Y. Kondal Rao (DRR)
19
Jul

Brown Plant hopper

Order: Hemiptera

Family : Delphacidae

Scientific name : Nilaparvata lugens

Local name :

File Courtesy: 
ZARS, Mandya
19
Jul

Control of Green leafhopper

1.Use resistant varieties like IR 50, CR 1009, Co 46.
2. Apply neem cake @ 12.5 kg/20 cent nursery as basal dose.
3. Spray carbaryl 50 WP @ 900 g or Monocrotophos 36 WSC @ 850 ml ha-1 or BPMC 50 EC @ 600 ml ha-1 or Acephate 50 WP @ 950 g ha-1 or Ethofenprox 10 EC @ 500 ml ha-1 or Imidacloprid 200 SL @ 125 ml ha-1 or Thiamethoxam 25 WG @ 100 g ha-1 or Clothianidin 50 WDG 30 g ha-

File Courtesy: 
ZARS, Mandya
19
Jul

Life stages of Green leafhopper

Egg: Greenish transparent eggs are deposited in the midrib of leaf blade or sheath of rice or green grass. They are laid in batches of 10 to 15 arranged in a single row.

Nymph: The nymphs are soft bodied, yellow white in colour. Gradually the colour changes to green.

File Courtesy: 
ZARS, Mandya
19
Jul

Symptoms and Nature of damage of Green leafhopper

Symptoms of attack of Green leafhopper: Affected plants become pale yellow in colour and get stunted in growth. If the plants are tapped large number of leafhoppers may be seen jumping to water.

Nature of damage of Green leafhopper: Both nymphs and adults suck the plant sap from the leaf and leaf sheath. (It is a phloem feeder. Amino acid content is high in phloem sap than xylem.

File Courtesy: 
ZARS, Mandya
Photo Courtesy: 
Mr. Y. Kondal Rao (DRR)
19
Jul

Green leafhopper

Order: Hemiptera

Family: Cicadellidae

Scientific name: Nephotettix virescens

Local name:

File Courtesy: 
ZARS, Mandya
19
Jul

Control of Thrips

• Spray any one of the following in nursery stage
Phosphamidon 40 SL 50 ml
Monocrotophos 36 SL 40 ml
Endosulfan 35 EC 80 ml
• Spray any one of the following in main field stage
Phosphamidon 40 SL 300 ml
Monocrotophos 36 SL 30 ml

File Courtesy: 
ZARS, Mandya
19
Jul

Life stages of Thrips

1. Egg: Eggs laid singly in the tissues of the tender leaves on the sides facing the stem. Eggs are hyaline and turn pale yellow as they mature.

2. Nymph: Newly hatched nymphs are transparent but turn yellowish white after the first moult and possess darker legs, head and antennae.

3. Pupa: Pupation takes place inside the rolled leaves and appendages and wings are clearly visible.

File Courtesy: 
ZARS, Mandya
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