KAU Agri Infotech Portal

Rice (Oryza sativa)

Brown Plant Hopper (Nilaparvata lugens)

Symptoms

Nymphs and adults congregate at the base of the plant above the water level and suck the sap from the tillers.
The affected plant dries up and gives a scorched appearance called “hopper burn”.
Circular patches of drying and lodging of matured plants are typical symptoms caused by this pest.
It is the vector of grassy stunt, ragged stunt and wilted stunt diseases.
White to brown nymphs and brown or white adults feeding near the base of tillers can be seen.
The infestation can spread quickly to other areas.
Close planting increases the risk of aphid infestation.

Management

Install light traps to monitor the pest population.
Incorporate additional dose of potash @ 6 Kg/acre.
Use resistant varieties such as Jyothi, Bharathi, Aiswarya, Kanakom, Nila etc. for cultivation.
Drain away water from the field and keep it in that conditions until the pest population dwindle.
In Kuttanad tract, early planting of paddy in September-October is advisable, wherever possible.
Avoid close planting
Allow alleyways after every 3m rows
Avoid spraying synthetic pyrethroids.
Apply urea - neem cake mixture 5:1 ratio (keep urea mixed with neem cake overnight before application).

Chemical Control

Sl.No	Generic Name	Trade Name	Color code	Dosage/litre	Knapsack Sprayer (Capacity 10L)	Dosage/acre (200 L)	Dosage/hectare (500 L)
1	Buprofezin 25 SC	Applaud, Koram, Jawaa, Flotis, Ninja, Apple, Lapa Pi Bupro, Tagvoltage, Banzo, Bipimain, Swaltrust	Blue	1.6 ml/litre of water	16 ml	320 ml	800 ml
2	Ethofenprox 10 EC	Trebon, Nukil	Yellow	1-1.5 ml/ litre of water	10 - 15 ml	200 -300 ml	500-750 ml
3	Quinalphos 25 EC	Agroquin, Anuphos, Guin Guard Tagquin, H.LX, Hilquin Geelux, Kinalaux Exalux, Krilux, Quinaswan Flash, Quincid Starlux, Rambalux Quinolux	Yellow	1- 2 ml/ 1litre of water	10-20 ml	200-400 ml	500-1000 ml
4	Thiamethoxam 25 WG	ACT 150,Actara,Click Exaam, Krioxam, Maxima,Renova,Slayer Suckgan,Tagsulf,Tagxone,Theme,Wonderex	Blue	0.2-0.4 g/ litre of water	2-4 g	40-80 g	100-200 g
5	Acephate 75 SP	Acefex, Ace, Asataf, Corochamp Dhanraj, Hilphate Lancer, Lucid, Oval Pace, Starthene Tagace, Tamaron, Torpedo	Blue	1.5-2g/ litre of water	15-20 g	300-400 g	750-1000 g
6	Phosalone 35 EC	Zolone	Yellow	2 ml/ litre of water	20 ml	400 ml	1000 ml
7	Imidacloprid 17.8 SL	Admit, Crop mida, Agro mida, Tata mida, Sensex, Confidor, JK Imida, Seamer, Courage, Maharaja, Shogun, Mantra, Novastar, Imigro, Nagarjuna mida, Hilmida, Atom Imidacel, Imida Gold Anumida, Confident, Dharbhar, Admit, Josh/Guard , Parrymida, Suzu, Jumbo Imidastar, Imidan, MediaVictor, Tropical Magic	Yellow	0.3 ml/ litre of water	3 ml	60 ml	150 ml
8	Cartap hydlochloride 50 SP	Beacon SP, Caldan SP, Celtap 50 SP, Fast Kritap 50 SP, Hilcartap , Kaardon 50 SP, Padan	Yellow	2 g/ litre of water	20 g	400 g	1000 g
9	Acetamiprid 20 SP	Acelon Crop pride 20SP, Aceta, Acetacel Hilpride, Dhanapreet 20SP, Ekka, Excel, Lift, Manik Pride, Rekord Scuba20SP, Star attack, Tagride	Yellow	0.15 g/litre of water	1.5 g	30 g	75 g
10	Carbosulfan 25 EC	Marshal, Aaatank	Yellow	2 ml/ litre of water	20 ml	400 ml	1000 ml