Any insect larva or arthropod that bores into plant stems is known as a stemborer (stem borer). However, the name most usually refers to the larvae of certain longhorn beetles, such as Dorysthenes buqueti and those of the family Oberea, in the Coleoptera, and to certain Crambidae, Castniidae, Gelechiidae, Nolidae, and Pyralidae moths in the Lepidoptera. In this article we will discuss about the various types of Paddy Stem Borer and their possible treatment.
Dark headed stem borer
Scientific Name: Chilo Polychrysus
Eggs are white in color and laid near base of the leaves
Dark headed paddy stem borer larvae are grayish white in color with five longitudinal stripes on the body and have distinct dark brown to black head
Adults moth are brownish yellow in color
In vegetative stage larvae bore into tillers and feed the stem leading to drying of shoots called as ‘dead-heart
In reproductive stage larvae bores into the stem and feed upon the tissues of the central shoot leads to unfilled grains called as ‘white-earhead’.
Dark Headed Stem Borer Pest Control
Inundate release of egg parasitoid, Trichogramma japonicum @ 100,000 adults/ha for 5 to 6 times starting from 15 days after transplanting.
Apply neem cake @ 150 kg/ha in main field at transplanting.
Applychlorantraniliprole0.4 G @ 10kg/ha or Imidacloprido.3 G @15kg/ha or Cartap 4 G @ 25 kg/ha or fipronil 0.3 G @ 25 kg/ha.
Spray chlorantraniliprole18.5 SC @150ml/ ha or Flubendiamide 20 WG@125g/ha or thiacloprid 21.7 SC @500ml/ha or Cartap 50 WP @ 1000 g/ha or chlorpyriphos 20 EC @ 1250 ml/ha or quinalphos 25 EC @ 1000 ml/ha
Pink stem borer
Scientific Name: Sesamia Inference
Eggs are creamy white to dark colored
Pink Paddy stem borer larvae are pinkish in color and don’t have any stripes
Adults moth are straw colored
In vegetative stage larvae bore into tillers and feed the stem leading to drying of shoots called as ‘dead-heart
In reproductive stage larvae bores into the stem and feed upon the tissues of the central shoot leads to unfilled grains called as ‘white-earhead’.
Pink Stem Borer Pest Control
Inundate release of egg parasitoid, Trichogramma japonicum @ 100,000 adults/ha for 5 to 6 times starting from 15 days after transplanting.
Apply neem cake @ 150 kg/ha in main field at transplanting.
Applychlorantraniliprole0.4 G @ 10kg/ha or imidacloprido.3 G @ 15kg/ha or Cartap 4 G @ 25 kg/ha or fipronil 0.3 G @ 25 kg/ha.
Spray chlorantraniliprole18.5 SC @ 150ml/ ha or c 20 WG
@125g/ha or thiacloprid 21.7 SC @ 500ml/ha or Cartap 50 WP @ 1000 g/ha or chlorpyriphos 20 EC @ 1250 ml/ha or quinalphos 25 EC @ 1000 ml/ha
Striped stem borer
Scientific Name: Chilo Suppressalis
- Newly laid Eggs are white in color and later it turns to yellow color
- Striped paddy stem borer larvae are pink or light brown in color and have five rows longitudinal stripes throughout the body with large brownish head
- Adults moth are brownish yellow in color and have 1-2 black dots in forewing and hindwings are white in color
- In vegetative stage larvae bore into tillers and feed the stem leading to drying of shoots called as ‘dead-heart
- In reproductive stage larvae bores into the stem and feed upon the tissues of the central shoot leads to unfilled grains called as ‘white-earhead’.
Striped Stem Borer Pest Control
Inundate release of egg parasitoid, Trichogramma japonicum @ 100,000 adults/ha for 5 to 6 times starting from 15 days after transplanting.
Apply neem cake @ 150 kg/ha in main field at transplanting.
Applychlorantraniliprole0.4 G @ 10kg/ha or imidacloprido.3 G @15kg/ha or Cartap 4 G @ 25 kg/ha or fipronil 0.3 G @ 25 kg/ha.
Spray chlorantraniliprole18.5 SC @ 150ml/ ha or Flubendiamide 20 WG @125g/ha or thiacloprid 21.7 SC @ 500ml/ha or Cartap 50 WP @ 1000 g/ha or chlorpyriphos 20 EC @ 1250 ml/ha or quinalphos 25 EC @ 1000 ml/ha
White Stem borer
Scientific Name: Scirpophaga Innotata
Eggs are white in color and covered with female anal hairs
- This paddy stem borer larvae are whitish to light yellow in color and don’t have any stripes.
- Adults moth similar to Yellow stem borer but fully white in color and don’t have any spots on the forewings • In vegetative stage larvae bore into tillers and feed the stem leading to drying of shoots called as ‘dead-heart’
- In reproductive stage larvae bores into the stem and feed upon the tissues of the central shoot leads to unfilled grains called as ‘white-earhead’.
- In reproductive stage larvae bores into the stem and feed upon the tissues of the central shoot leads to unfilled grains called as ‘white-earhead’.
White Stem Borer Pest Control
Inundate release of egg Parasitoid,Trichogramma japonicum @ 100,000 adults/ha for 5 to 6 times starting from 15 days after transplanting
Apply neem cake @ 150 kg/ha in main field at transplanting.
Apply Chlorantraniliprole 0.46 @ 10kg/ha or imidacloprid 0.36 @15kg/ ha or Cartap 46 @ 25kg/ ha or fipronil 0.3 G @ 25 kg/ha.
Spray chlorantraniliprole18.5 SC @ 150ml/ ha or Flubendiamide 20 WG @125g/ha or thiacloprid 21.7 SC @ 500ml/ha or Cartap 50 WP @ 1000 g/ha or chlorpyriphos 20EC @ 1250 ml/ha or quinalphos 25EC @ 1000 ml/ha
Yellow Stem borer
Scientific Name: Scirpophaga Incertulas
Eggs are covered with buff colored hairs laid in mass.
- Yellow paddy stem borer larva is pale yellow with dark brown head.
- Female moths are bright yellowish brown fore wings with a black spot.
- In vegetative stage larva feeds inside In vegetative stage larva feeds inside the leaf sheath leads to yellowing and drying of the youngest shoot, resulting in the formation of ‘dead-heart’.
- In reproductive stage larva feeds inside the stem results in panicles with unfilled grains called ‘white earhead’.
Yellow Stem Borer Pest Control
- Install pheromone traps with 5 mg lure @ 8 traps/ha for pest monitoring or 20 traps/ha for direct control through mass trapping. Replace lures at 25 to 30 days interval during the crop period.
- Inundate release of egg parasitoid, Trichogramma japonicum @ 100,000 adults/ha for 5 to 6 times starting from 15 days after transplanting.
Apply neem cake @ 150 kg/ha in main field at transplanting.
Apply Chlorantraniliprole 0.46 @ 10kg/ ha or imidacloprid 0.36 @15kg/ha or Cartap 4G @ 25 kg/ha or fipronil 0.3 G @ 25 kg/ha.
Spray Chlorantraniliprole 18.5SC @ 150ml/ ha or Flubendiamide 20 WG @125g/ha or thiacloprid 21.7 SC @ 500ml/ha or Cartap 50WP @ 1000 g/ha or Chlornurinhoa 20cm 1250 ml/ha or chlorpyriphos 20ec @ 1250 ml/ha or quinalphos 25ec @ 1000ml/ha
