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Table 2 Effect of different management practices on the incidence of sugarcane borers

From: Evaluation of augmentative biological control strategy against major borer insect pests of sugarcane—a large-scale field appraisal

Year

Treatments

Per cent incidence

C. infuscatellus

S. excerptalis

C. auricilius

2015

Biocontrol practice#

4.7b

5.1b

2.5a

Farmers’ practice*

2.0a

2.2a

-

Untreated control

11.5c

11.0c

6.3b

2016

Biocontrol practice#

2.2b

3.1b

3.1a

Farmers’ practice*

0.7a

1.5a

-

Untreated control

5.2c

7.0c

7.7b

2017

Biocontrol practice#

2.8b

4.7b

3.3a

Farmers’ practice*

1.0a

2.0a

-

Untreated control

6.3c

10.2c

8.1b

2018

Biocontrol practice#

2.6b

3.8b

3.1a

Farmers’ practice*

0.8a

1.4a

-

Untreated control

5.9c

7.8c

7.9b

2019

Biocontrol practice#

2.1b

3.0b

2.5a

Farmers’ practice*

1.0a

1.3a

-

Untreated control

4.9c

6.4c

6.6b

  1. Values followed by different letters in the columns are significantly different at P = 0.05
  2. #8 releases of T. chilonis and T. japonicum at 50,000 ha−1 against C. infuscatellus and S. excerptalis, respectively during April to June; 10–12 releases of T. chilonis at 50,000 ha−1 against C. auricilius during July to October
  3. *Fipronil 0.3 G at 25 kg ha−1 (2015) and Chlorantraniliprole 18.5 SC at 375 ml ha−1 (2016–2019) for the management of C. infuscatellus; Chlorantraniliprole 0.4 GR at 25 kg ha−1 (2015–2019) for the management of S. excerptalis