THE IMPACT OF SOWING DATES AND VARIETIES ON THE INCIDENCE OF OXYCARENUS LAETUS AND DYSDERCUS KOINGII ON COTTON

Autores

  • Muhammad Rafiq Shahid Cotton Research Institute, Faisalabad, pakistan
  • Abid Mahmood Cotton Research Institute, Faisalabad, pakistan
  • Jehanzeb Farooq Cotton Research Institute, Faisalabad, pakistan
  • Muhammad Tasdeeq Hussain Shahid Cotton Research Institute, Faisalabad, pakistan
  • Muhammad Asif Cotton Research Institute, Faisalabad, pakistan
  • Muhammad Ramzan Cotton Research Institute, Faisalabad, pakistan
  • Muhammad Akram Cotton Research Institute, Faisalabad, pakistan
  • Muhammad Shahid Iqbal Cotton Research Institute, Faisalabad, pakistan

DOI:

https://doi.org/10.14295/cs.v5i4.488

Palavras-chave:

Red cotton bug, dusky bug, cultural practices, pest status, sowing date

Resumo

Dusky bug (Oxycarenus laetus) and red cotton bugs (Dysdercus koingii) are commonly known as seed bugs because they feed on cotton seed. They have become major threat to cotton in Pakistan since last two years. The present studies were therefore planned to find out the role of sowing dates in cotton pest population. The dusky and red cotton bug population varied considerably with respect to date of sowing. The results revealed that invasion of both bugs was significantly more in case of early sowing ( up to 15 red cotton bug/plant & 25 dusky bugs/boll) than in normal and late sowing (8 to 10 red cotton bugs & 10 to 12 dusky bug/boll respectively). Sampling dates exhibited that population of cotton bugs (dusky and red cotton bug) was higher during first week of October followed by mid September, 2013, whereas lower in late sowing. Varietal comparison depicted that FH-118 and FH-142 showed non significant difference for red and dusky cotton bug population. The results further explained that peak population of red cotton bug was recorded during the month of October, 2013.

Downloads

Não há dados estatísticos.

Biografia do Autor

Abid Mahmood, Cotton Research Institute, Faisalabad, pakistan

Cotton Research Institute, Faisalabad, pakistan

Muhammad Shahid Iqbal, Cotton Research Institute, Faisalabad, pakistan

Cotton Research Institute, Faisalabad, pakistan

Downloads

Publicado

2014-12-30

Como Citar

Rafiq Shahid, M., Mahmood, A., Farooq, J., Tasdeeq Hussain Shahid, M., Asif, M., Ramzan, M., … Shahid Iqbal, M. (2014). THE IMPACT OF SOWING DATES AND VARIETIES ON THE INCIDENCE OF OXYCARENUS LAETUS AND DYSDERCUS KOINGII ON COTTON. Comunicata Scientiae, 5(4), 412–418. https://doi.org/10.14295/cs.v5i4.488

Edição

v. 5 n. 4 (2014)

Seção

Artigos

Licença

A revista se reserva o direito de efetuar, nos originais, alterações de ordem normativa, ortográfica e gramatical, com vistas a manter o padrão culto da língua, respeitando, porém, o estilo dos autores. As provas finais serão enviadas aos autores. Os trabalhos publicados passam a ser propriedade da revista Comunicata Scientiae, ficando sua reimpressão total ou parcial, sujeita à autorização expressa da direção do periódico. Deve ser consignada a fonte de publicação original. Os originais não serão evolvidos aos autores. As opiniões emitidas pelos autores dos artigos são de sua exclusiva responsabilidade.