CONTROL OF ZONOCERUS-VARIEGATUS BY ULTRA-LOW VOLUME APPLICATION OF AN OIL FORMULATION OF METARHIZIUM-FLAVOVIRIDE CONIDIA

被引:44
作者
DOUROKPINDOU, OK
GODONOU, I
HOUSSOU, A
LOMER, CJ
SHAH, PA
机构
[1] INT INST TROP AGR,BIOL CONTROL CTR AFRICA,DIV PLANT HLTH MANAGEMENT,COTONOU,BENIN
[2] CAB INT,INST BIOL CONTROL,ASCOT SL5 7TA,BERKS,ENGLAND
[3] SERV PROTECT VEGETAUX,PORTO NOVO,BENIN
关键词
MICROBIAL CONTROL; GRASSHOPPERS; ENTOMOPATHOGENIC FUNGI; DEUTEROMYCETES; METARHIZIUM FLAVOVIRIDE; ZONOCERUS VARIEGATUS; ULV; FORMULATION;
D O I
10.1080/09583159550040079
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
An oil-based formulation of Metarhizium flavoviride conidia, applied at 2 X 10(12) spores ha(-1) in 11 ha(-1) gave good control of Zonocerus variegatus in 1-ha plots in southern Benin. In a three-replicate, randomized, complete block (RCB) trial in Mono province, a significant reduction in insect counts between treated and control plots was observed 10-15 days after application; treatment reduced the population by about 90%. A four-replicate RCB trial in Oueme province also gave high mortality. Although a significant difference between treated and untreated plots was observed 10-18 days after application, insect dispersal out of cassava fields towards oviposition sites interfered with a clear demonstration of control. Significantly more Z. variegatus cadavers with M. flavoviride infection were found in treated plots than control plots.
引用
收藏
页码:131 / 139
页数:9
相关论文
共 13 条