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Commercial Availability of Trichogramma for
Biologic a l Control of Sugarcane Bo rers
TMM U N '" N A T H
Bioc o n tr o l Research Labor a to r ies, Pest CoB
Btrol (India) PvtLfmited
Rabindr a nath Tago r e Nagar, Bangalore560 032
A )r OTHBORE R S are n1ajor peBta o f augar c a n e in moe of rele a s e, dosage, adva n tages, etc, are outlined
1V1 1n ost a r ea s Ov e r a do z e n spe c ieB hav e be e n in thi1 paper
reported fr o m Indi a o f which the foll o w ing a r e of major
signiBicance in o n e r e gio n or the othe r , EGG Parasite s , H * hogram m a SPP,
Early 1ho o tbore r Chito ir¢usc a telïus (Sn) to the family Trichogram m atidae a n d a r e exclusively
Trichogra n t m a SppArc minute wa sps whi ch belong
Intcmuode bo r er Cindfcus (Kapoor) egg para a itcrThey attack the cgg1 o f various s pe c ie s
Stalkborer Ca u ricilius (Dudj) of s u garc a n e bor e r1 and als o of large number o f othe r
PlasBcy bore r Ctun1idicosta/is Ha m p1gricultura1 pests, mainly LepidoptcraThc pa r asite i8
uu B u a a pu' ' ' ' ' ' - " Ó u "_ ° " - - ° v > 'labo r atories a nd ha 1 beenextc m ively use d fo r biological
Topborer bi woryza nive1la (Fab) c o ntr o l of a variety of pests in seve r al countries
T hese lay eggs o n leave s T h e damage is c a use by Her r Trichogramma kills the bor e r
the c a tc r piuars which bo r e into thc sugar c a n e ste m and
feed o n the tiasu e s throughout their l ifeThis re s ults T be tiny adult parasite, which is a c tive in ïiel d s,
in de a th of the plant o r aftccts the yield and quality of lo c ate s thc ho s t eggs and para sitisca tliemieIt lays eggs
juice 1a r va feeds o n thc host egg ·
nd completes its devel
within the eggs o f the pestOn hatching, thc pa r a site
Chemical co n tr o l of the s e internal feeders ia m e n t withinT h c parasitised oggi turn bl ack, an
di cult for v a r ious r ea s o nsBiological c o ntrol, invalu a bl e d iagnostic c har
· eter, in 3 to 4 day1 a nd
especially thro u gh inu n dative rc]eases of the cgg adult par a s ite s e m erge in 7 to 9 day1Thu s , in s te a d of
parasites, Trichogramma spp, has been w idely pra c tised the bo r er larva e hatchir1g fro m the e ggs, the Rarasite a
in s e v eral countries and it ha s a1ao r e c eiv e d c o n 1i d e r ablc c o m e o utA single parasite can thus destroy over 100
attentioù in IndiaHowever, pr a ctic a l b iological eggs of the pest
control trials in India a r c very limited, mainly due to
no n availability of natu r al en e mies to the gr o we r s as Tricìiogramm a k ills the pe s t in thc eg g stage itself
and when the s e are requiredin view o f this, pest befo r e thc pest c o uld cau s e any damage to the c r opit
control (Indi a) pvtLtdHa s recently e s tablished in is a pur e ly benci ci al insect
c a controlA brief
"BIOCONTROL RESEA R CH LABOR A T O RIES'Histo r y
(BC R L), to undertake ma ssproduction o f promising
para 1ites and predator s of c e rtain majo r pests a n d T h e pr a ctice of using TrìchograJ?1m a for the contr o l
1 u pply the Be to the c u ltivators at reaso n ab le costof sugarc a ne bo r e rs w a s in v ogue in Lo u siana and
Sever a l specie B Trichqgramm a arc als o multiplied at Barbado s about five de c a des agoCurr e ntly, the
BCRL, which can be obtained on prior indentsn ic}iogïamma m e thod'is a commercial management
Information on various a s pects of T ricllogram1nlï, like its practice against a v ariety of lepidopter o u s pests in So u th
availability1 field pe r formanc e . M o de of supply, tim e and America, the USA, and the US S Rand particularly
cnoppR\
rry13 SUGARApril 85 : VOl16, N08 493
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