Photo 1 . C ate rp illa r o f
Harit o lo des d ere gata
ro llin g le aves o f
b ele
. Photo 2 . C ate rp illa r o f t h e b ele (c o tto n) le af
ro lle r,
Harit o lo des d ere gata ,
s h ow in g t h e d ark
sp ots b eh in d t h e h ead .
Photo 3 . C ate rp illa r o f t h e b ele
(c o tto n) le af
ro lle r,
Harit o lo des d ere gata
.
Photo 4 . A dult b ele (c o tto n) le af
ro lle r,
Harit o lo des d ere gata
.
Photo 5 . E xte n siv e d am age t o
b ele
ca b bage b y
th e b ele (c o tto n) le af r o lle r,
Harit o lo des
dere gata
.
Photo 6 . C urlin g a n d d ro opin g o f le aves
atta ck ed b y t h e b ele (c o tto n) le af
ro lle r,
Harit o lo des d ere gata
. P acif ic P ests a n d P ath ogen s - F a ct S h eets
P acif ic P ests a n d P ath ogen s - F a ct S h eets
B ele ( A belm osch us) le af r o lle r ( 0 87)
B ele ( A belm osch us) le af r o lle r ( 0 87)
C om mon N am e
C om mon N am e
C otto n le af r o lle r, b ele le af r o lle r
S cie n tif ic N am e
S cie n tif ic N am e
Harit a lo des d ero gata
( p re vio usly
Syle p ta
dero gata
).
D is tr ib utio n
D is tr ib utio n
W orld w id e. A sia , A fr ic a , O ce an ia . It is r e co rd ed f r o m A ustr a lia , F iji, P ap ua N ew G uin ea, S am oa, a n d S o lo m on Is la n ds.
H osts
H osts
Bele
(
aib ik a
, is la n d c a b bage o r s lip eri k a b is ,
Abelm osch us m an ih ot
. T h e m oth is a ls o a p est o f o rn am en ta l
Hib is cu s
,
c o tto n, o kra , a n d s o m e w eed s.
S ym pto m s & L if e C ycle
S ym pto m s & L if e C ycle
T h e c a te rp illa rs r o ll t h e le ave s, r e m ain in g in sid e t h e t u nnel t h ey c re ate , e atin g t h e le ave s a t t h e e d ges a n d b etw een
t h e m ain v e in s.
E ggs a re la id s in gly o r in g ro ups o n t h e u nders id e o f t h e le ave s. A t f ir s t, t h e la rv a e s ta y t o geth er a n d f e ed o n t h e
u nders id es, o nly la te r s ta yin g a lo ne in sid e f o ld ed le ave s ( P hoto 1 ). F ro m t h e s e co nd m oult t h ey h ave t w o d ark
s p ots ju st b eh in d t h e h ead o n t h e f ir s t s e gm en t o f t h e t h ora x ( P hoto s 2 & 3). A ft e r a s h ort p upal s ta ge, t h e a d ult s
e m erg e. T h eir w in gs a re c re am w it h a c o ntin uous lin e a lo ng t h e o ute r a n d b ack b ord er o f t h e w in gs, a n d d ark -
b ro w n " s ca tte re d " lin es e ls e w here ( P hoto 4 ). T h e w in gsp an is 3 0-4 0 m m. T h e lif e c ycle o f t h e b ele le af r o lle r is a b out
3 0 d ays f r o m e gg t o a d ult .
I m pact
I m pact
T h e d am age is e xte n siv e w it h b ro ad -le afe d v a rie tie s a p pearin g t o s u ffe r m ore t h an t h ose w it h d eep ly d iv id ed le ave s
( P hoto 5 ). C urlin g, d ro opin g a n d d efo lia tio n o f le ave s is c o m mon ( P hoto 6 ).
D ete ctio n & In sp ectio n
D ete ctio n & In sp ectio n
L o ok f o r r o lle d le ave s. L o ok f o r w eb bin g a ro und t h e c a te rp illa r, w hic h h as t w o s p ots o n t h e t o p o f t h e s e gm en t
b eh in d t h e h ead . T h e s p ots a re a c h ara cte ris tic f e atu re o f t h e b ele ( c o tto n) le af r o lle r.
M an agem en t
M an agem en t
N ATU RAL E N EM IE S
A part f r o m s p id ers a n d p ra yin g m an tid s, t h ere a re f e w r e co rd s o f p re d ato rs a n d p ara sit e s a tta ckin g t h e b ele le af
r o lle r.
C U LT U RAL C O NTR O L
B efo re p la n tin g:
Do n ot p la n t n ext t o c ro ps t h at a re a lr e ad y in fe ste d w it h t h e b ele le af r o lle r.
D urin g g ro w th :
If o nly a f e w p la n ts a re in fe ste d w it h t h e b ele le af r o lle r, d o t h e f o llo w in g:
o P in ch r o lle d le ave s b etw een f in ger a n d t h um b, s q uash in g t h e c a te rp illa r in sid e.
o P ru ne t h e r o lle d le ave s; r e m ove t h e c u ttin gs f r o m t h e g ard en a n d b urn t h em .
A ft e r h arv e st:
Colle ct t h e p la n ts a n d d eb ris a ft e r h arv e stin g t h e le ave s f o r t h e la st t im e, a n d b urn t h em .
C H EM IC AL C O NTR O L
I f p estic id es a re n ece ssa ry , u se b ota n ic a l ( p la n t-d eriv e d p estic id es) s p ra ys f ir s t, a s t h ese w ill c a u se le ss h arm t o
n atu ra l e n em ie s, a n d c o st le ss, t h an s yn th etic c o m merc ia l p ro ducts .
Use n eem , d erris , p yre th ru m o r c h illi. If t h ese a re u se d , a d d s o ap t o h elp t h e c h em ic a l r e ach t h e c a te rp illa rs
wit h in t h e r o lle d le ave s.
Alt e rn ativ e ly , u se c o m merc ia l b io pestic id es, e .g ., s p in osa d ( t h e p ro duct is c a lle d S u cce ss) o r B t -
Bacillu s
th urin gie n sis
v a r
. k u rs ta ki
(t h e p ro duct is c a lle d D ip el) .
If u sin g D ip el, n ote t h e f o llo w in g:
En su re t h at B t c o ve rs t h e p la n ts ; c a te rp illa rs w ill o nly d ie if t h ey e at B t.
Eggs a re n ot s u sce p tib le t o B t.
Use B t a s s o on a s d am age is s e en .
Sm all la rv a e a re m ore s u sce p tib le t o B t t h an f u lly g ro w n o nes.
Syn th etic p yre th ro id s a re lik e ly t o b e e ffe ctiv e , b ut w ill a ls o k ill n atu ra l e n em ie s.
A U TH ORS H ele n T sa ts ia & G ra h am e Ja ck so n
P h oto s 1 -3 S u za n ne N eave, C ABI, U K. P h oto 4 G eorg G oerg en , I IT A /In se ct M use u m , C oto n ou , B en in .
P ro d uce d w it h s u pport f r o m t h e A ustr a lia n C en tr e f o r I n te rn atio n al A gric u lt u ra l R ese arch u nder p ro je ct P C /2 010/0 90:
Str e n gth en in g in te gra te d c ro p m an agem en t r e se arch in t h e P acif ic I s la n ds in s u pport o f
su sta in ab le in te n sif ic a tio n o f h ig h -v alu e c ro p p ro d uctio n ,
im ple m en te d b y t h e U niv ersit y o f Q ueen sla n d a n d t h e S ecre ta ria t o f t h e P acif ic C om munit y .
Th is f a ct s h eet is a p art o f t h e a p p
Pacif ic P ests a n d P ath ogen s
Th e m obile a p plic a tio n is a va ila b le f r o m t h e G oogle P la y S to re a n d A pple iT u nes.
Andro id E d it io n
Andro id E d it io n
Apple iO S E d it io n
Apple iO S E d it io n
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