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Ipm insects > Rice > Flashcards

Rice Flashcards

1
Q

Gryllotalpa
orientalis

A

Mole cricket

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2
Q

They live in all rice environments but are most
prevalent in non-flooded upland rice fields with
damp soil.

A

Gryllotalpa
orientalis

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3
Q

Mole cricket damage is greater near the field borders
where they relocate after tillage operations

A
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4
Q

Mole cricket damage is greater near the field borders
where they relocate after tillage operations

A

Gryllotalpa orientalis

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5
Q

Cnaphalocrocis
medinalis)

A

Leaf folder

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6
Q

Leaffolders live in all environments but are
abundant during the rainy season. High humidity,
shady areas of the field, and excessive use of
nitrogenous
fertilizers
favor
their
rapid
multiplication.

A

Cnaphalocrocis
medinalis

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7
Q

Parapoynx stagnalis

A

Caseworm

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8
Q

Caseworm is found in irrigated and wetland areas
where standing water in the field is a prerequisite
for larval survival.

A

Paraponyx stagnalis

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9
Q

Caseworm is found in irrigated and wetland areas
where standing water in the field is a prerequisite
for larval survival.

A

Paraponyx stagnalis

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10
Q

Pelopidas mathias

A

Rice skipper

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11
Q

The adult is a stout brown butterfly with small
white spots on the wings. Adults are active during
the day, making darting, erratic movements from
which the name skipper was coined

A

Pelodipas mathias

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12
Q

Occurs in all rice environments, but prevalent in
rainfed rice. Upland environments with their
diverse microhabitats can provide more favorable
sites than lowland rice plains

A

Pelodipas mathias

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13
Q

Schistocerca gregaria

A

Shorthorned grass hopper

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14
Q

They are found in all rice environments but are
prevalent in rainfed areas. They tend to localize in
dry areas and rice fields adjacent to grasslands
where they breed.

A

Schistocerca gregaria

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15
Q

They are found in all rice environments but are
prevalent in rainfed areas. They tend to localize in
dry areas and rice fields adjacent to grasslands
where they breed.

A

Schistocerca gregaria

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16
Q

Spodoptera
frugiperda

A

Army worm

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17
Q

They live in all rice environments, but are serious
in upland rice as they need dry soil for pupation.
Lowland
fields

A

Spodoptera frugiperda

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18
Q

Larva is the damaging stage. Young rice plants are
often cut at ground level while older plants are
only defoliated

A

Spodoptera frugiperda

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19
Q

Hydrellia
philippina

A

Whorl maggot

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20
Q

t is a pest of rice seedlings only under irrigated and
rainfed conditions. Adults prefer ponds, streams,
lakes, and irrigated rice fields for their breeding.

A

Hydrellia philippina

21
Q

The larva that causes damage is called the maggot.
It feeds on unopened leaves, nibbling the inner
margins.

A

Hydrellia philippina

22
Q

Scirpophaga incertulas

A

Yellow stem borer

23
Q

Yellow stem borer is a notorious pest of deepwater
rice. It is abundant in aquatic habitats where
flooding occurs and where multiple rice crops are
grown annually

A

Scirpophaga incertulas

24
Q

White stem borer

A

Scirpophaga
innotata

25
Q

The adult of this species looks similar to the YSB
except that it does not have any dark spot on the
forewings, in either sex.

A

Scirpophaga innonata

26
Q

Predominant in rainfed areas where there is only one
wet season crop per year, Thus, this insect does not occur in areas with high
rainfall

A
27
Q

Predominant in rainfed areas where there is only one
wet season crop per year, Thus, this insect does not occur in areas with high
rainfall

A

Scirpophaga innonata

28
Q

WSB is presently found in the Visayas
and Mindanao.

A

Scirpophaga innonata

29
Q

Sesamia
inferens

A

Pink stem borer

30
Q

The adult moth is fawn-colored with brown streaks
on the forewings and white hindwings.

A

Sesamia inferens

31
Q

They are abundant in upland rice grown near
sugarcane or related grasses. They are also seen in
upland rice fields of Claveria, Misamis Oriental
(Northern Mindanao).

A

Sesamia inferens

32
Q

In young plants, the central
leaf whorl does not unfold, turns brownish, and dries
up, although lower leaves remain green and healthy.
Such symptom is referred to as

A

Deadheart

33
Q

In older
plants, the panicles dry up with unfilled grains and
turn white. Such symptom is referred to as

A

Whitehead

34
Q

Nilaparvata lugens

A

BPH

35
Q

Rainfed and irrigated wetland fields are preferred. It
is rare in upland rice

A

Nilaparvata lugens

36
Q

Heavy infestation creates brown
patches of dried plants known as

A

Hopperburn

37
Q

They
also transmit virus diseases: ragged stunt, grassy
stunt, and wilted stunt.

A

Nilaparvata lugens

38
Q

White-backed plant hopper

A

Sogatella furcifera

39
Q

Nephotettix
virescence

A

Green leaf hopper

40
Q

Grasses found near irrigation canals and levees, and
rice ratoons are favorable for feeding and egg-laying

A

Nephotettix virescence

41
Q

transmitting viruses (tungro,
dwarf, transitory yellowing, and yellow-orange leaf)
and a mycoplasma disease (yellow dwarf)

A

Nephotettix virescence

42
Q

Recilia
dorsalis)

A

Zigzag leafhopper

43
Q

They are present in all rice ecosystems but only
transmits virus diseases to wetland rice, transmit orange leaf, tungro, and dwarf viruses

A

Recilia dorsalis

44
Q

Leptocorisa oratorius

A

Paddy bug, seed bug

45
Q

They are found in all environments but are prevalent
in rainfed wetland or upland rice. They are
destructive in areas where rainfall is evenly
distributed throughout the year

A

Leptocorisa oratorius

46
Q

Scotinophara
coarctata

A

Rice black bug

47
Q

They are
called shield bugs because of their shield-like
appearance. They produce an offensive odor when
disturbed.

A

scortinophara coarcata

48
Q

Their saliva is toxic.
During severe infestations, young plants often die
and the whole field appears burnt. Such damage is
referred to as bug burn

A

Scotinophara coarcata

Ipm insects (7 decks)

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