coleopteran.docx

8/9/2019 coleopteran.docx

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common species of beetle in our country


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1. Rhinoceros beetle: Oryctes rhinoceros, (Scarabaeidae: Coleoptera)

Host range

Pineapple, sugarcane, arecanut, sago, oilpalm, palmyra, date palm and wild dates.

Distribution and status

Widely distributed throughout coconut growing areas in India. Regular pest on coconut.

Damage

symptoms

Central

spindle

appears

cut or

toppled;

fully

opened

fronds

show

characteris

tic

diamond

shaped

cuttings.

Holes with

chewed

fibre

sticking atthe base of


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central

spindle.

Click to iew !ore "amage

#ymptoms

Click to

iew

#ymptomideo

Bionomics

$emale lays upto %&' o(al

creamy white eggs in manure

pits or decaying (egetable

matter at a depth of ) to %)

cm. *gg period +%+ days,

#tout, sluggish, white grub

with pale brown head is

found at a depth of ) to -'

cm. rubs feed on the

decaying matter and grub

stage lasts for // to %+0

days. rub pupates in

earthern cells at a depth of

'.- to % m and emerges as

adults in %'0) days. 1dult

beetle is stout, black and hasa long horn pro2ecting

dorsally from the head in

male. Horn is short in female.

Click to iew 3ife Cycle

ideo

Management

"estroy and dispose all dead trees

1(oid manure pits in the (icinity of coconut gardens

Rake and turn up the decaying manure to e4pose the de(eloping grub, egg and

pupae to sun drying and predation. 5hen apply the fungal culture of Metarrhizium

anisopliae to manure pits during cooler months of 6ctober "ecember.

*ncourage redu(iid predators, Platymeris laevicollis

6nce in three months, drench the manure pits with carbaryl )' WP % g7lit

In seedlings, place naphthalene balls 8 - 7 tree, in the innermost three leaf a4ils once

in &) days.

#oak castor cake 8 % kg7) lit of water in wide mouthed mud pots and keep them in

the garden to attract and kill adults. Replace the slurry once in -' days.

$ermented toddy may be kept in wide mouthed earthern (essels in different places to

attract the adults during night.
http://agridr.in/tnauEAgri/eagri50/ENTO331/lecture07/rhino.htmlhttp://agridr.in/tnauEAgri/eagri50/ENTO331/lecture07/rhino.htmlhttp://agridr.in/tnauEAgri/eagri50/ENTO331/lecture07/001.htmlhttp://agridr.in/tnauEAgri/eagri50/ENTO331/lecture07/001.htmlhttp://agridr.in/tnauEAgri/eagri50/ENTO331/lecture07/001.htmlhttp://agridr.in/tnauEAgri/eagri50/ENTO331/lecture07/001.htmlhttp://agridr.in/tnauEAgri/eagri50/ENTO331/lecture07/001.htmlhttp://agridr.in/tnauEAgri/eagri50/ENTO331/lecture07/001.htmlhttp://agridr.in/tnauEAgri/eagri50/ENTO331/lecture07/001.htmlhttp://agridr.in/tnauEAgri/eagri50/ENTO331/lecture07/001.htmlhttp://agridr.in/tnauEAgri/eagri50/ENTO331/lecture07/001.htmlhttp://agridr.in/tnauEAgri/eagri50/ENTO331/lecture07/001.htmlhttp://agridr.in/tnauEAgri/eagri50/ENTO331/lecture07/001.htmlhttp://agridr.in/tnauEAgri/eagri50/ENTO331/lecture07/rhino.htmlhttp://agridr.in/tnauEAgri/eagri50/ENTO331/lecture07/rhino.html


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5he crown region may be properly cleaned during har(ests and the adults may be

hooked out using a long wire.

3ight traps may be set up to attract the adults during monsoon months and following

rains during summer.

5he topmost three a4ils may be filled with a mi4ture of sand 9 :eem #eed Powder0anuary as a prophylactic measure.

Incorporate Clerodendron infortunatum whole plant in the breeding sites

?se aggregation pheromone traps Rhinolure 8 %7ha. Instal the trap at fi(e feet from

the ground le(el.

Use aggregation pheromone traps Rhinolure @ 1/ha. Instal the trap at five feet from the

ground level.

Click to iew @iological Control ideo Click to iew !echanical Control ideo
http://agridr.in/tnauEAgri/eagri50/ENTO331/lecture07/001.htmlhttp://agridr.in/tnauEAgri/eagri50/ENTO331/lecture07/001.htmlhttp://agridr.in/tnauEAgri/eagri50/ENTO331/lecture07/001.html


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Like to angry sumo restlers! t"ese to beetles go for one anot"er# $"e

impact is so immense t"at you can still "ear t"e %armour% cras"ing to

metres aay# &eetle 'ersus beetle# (rmour against armour#

(ll si) legs pus" it" full force against t"eir ri'al! lea'ing t"eir tracks

be"in* in t"e soft +ute,oo* arena# -ou t"ink you can "ear bot" .g"ters

groan an*! for a moment! nobo*y mo'es a millimetre in any *irection!

*espite %full t"rottle%# /u**enly! t"ere is a uick "ea* mo'ement! a skilful

le'erage grip# it" "is intimi*ating %forceps,like as% t"e smaller of t"e

to "as grippe* "is eig"ty opponent in t"e back of t"e "ea*! lifte* "im

up! so t"at t"e larger one is *istraug"t it" all si) legs in t"e air! propels

forar* an* tries to "url "im from t"e battle oo*#

14 gron,up men! "o "a'e been folloing t"e *uel it" a spellboun*look an* an open mout"! break into s"outs an* ubilations3 %-es! no%

Picture by $# 5icke


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%6i'e it to "im% %6o on! *rop "im% 7n t"e $"ai language it soun*s

somet"ing like t"is to 8uropeans3 %Lolololololo% %(aaaa*aiiii% %ouu"

kamm! kamm! kamm! ouu" lololololo%

$"e fat one is too "ea'y# 7n a**ition "e "as sunk "is forceps *eep into t"e

neck of "is attacker an* *oesn9t e'en t"ink about letting go# $"e smallone must once again *rop "is ri'al nearby# :or almost se'en *ramatic

secon*s# $"e .g"t goes to t"e secon* roun*#

(t t"e same time eac" year t"e 8astern embankment of t"e ri'er Ping in

t"e small ton of ;"iang 5ai turns into a fairgroun* for


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Cepen*ing on its siDe an* aggressi'eness! a beetle can get beteen to

an* four 8uros in t"e market in ;"iang 5ai# :or trie* an* teste*

c"ampions! people may e'en pay up to 200 euros# (n* *espite t"e state

an* regal ban on t"e game! a fe coins inconspicuously c"ange "an*s

after a *ual#

"at to us in 8urope is regar*e* as cruelty to animals *oes not gi'e t"e

$"ai people a ba* conscience# $"e


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(ccor*ing to in*i'i*ual taste an* persuasion! a small steel clip is also

attac"e* to t"e stick! "ic" makes a**itional noise#

7f one of t"e opponents falls! is t"ron or alks oF t"e oo* t"e .g"t is

o'er# $"e 'ictorious beetle is leas"e* once again! eats a fe morsels of

sugar cane as refres"ment an* aits for t"e ne)t c"allenger#

(*mitte*ly sometimes t"e losing beetle becomes t"e real inner! for

e)ample "en t"e oners frustration after *efeat is suc" t"at t"e %failure%

is purposefully cast onto t"e nearest tree an* is t"en able to mount "is

lo'er to "is "eart9s content#

Picture by $# 5icke


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coleopteran.docx

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