Rice

Question 1

Gryllotalpa
orientalis

Answer 1

Mole cricket

Question 2

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

Answer 2

Gryllotalpa
orientalis

Question 3

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

Question 4

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

Answer 4

Gryllotalpa orientalis

Question 5

Cnaphalocrocis
medinalis)

Answer 5

Leaf folder

Question 6

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.

Answer 6

Cnaphalocrocis
medinalis

Question 7

Parapoynx stagnalis

Answer 7

Caseworm

Question 8

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

Answer 8

Paraponyx stagnalis

Question 9

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

Answer 9

Paraponyx stagnalis

Question 10

Pelopidas mathias

Answer 10

Rice skipper

Question 11

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

Answer 11

Pelodipas mathias

Question 12

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

Answer 12

Pelodipas mathias

Question 13

Schistocerca gregaria

Answer 13

Shorthorned grass hopper

Question 14

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.

Answer 14

Schistocerca gregaria

Question 15

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.

Answer 15

Schistocerca gregaria

Question 16

Spodoptera
frugiperda

Answer 16

Army worm

Question 17

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

Answer 17

Spodoptera frugiperda

Question 18

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

Answer 18

Spodoptera frugiperda

Question 19

Hydrellia
philippina

Answer 19

Whorl maggot

Question 20

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.

Answer 20

Hydrellia philippina

Question 21

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

Answer 21

Hydrellia philippina

Question 22

Scirpophaga incertulas

Answer 22

Yellow stem borer

Question 23

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

Answer 23

Scirpophaga incertulas

Question 24

White stem borer

Answer 24

Scirpophaga
innotata

Question 25

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.

Answer 25

Scirpophaga innonata

Question 26

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

Question 27

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

Answer 27

Scirpophaga innonata

Question 28

WSB is presently found in the Visayas and Mindanao.

Answer 28

Scirpophaga innonata

Question 29

Sesamia inferens

Answer 29

Pink stem borer

Question 30

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

Answer 30

Sesamia inferens

Question 31

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).

Answer 31

Sesamia inferens

Question 32

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

Answer 32

Deadheart

Question 33

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

Answer 33

Whitehead

Question 34

Nilaparvata lugens

Answer 34

BPH

Question 35

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

Answer 35

Nilaparvata lugens

Question 36

Heavy infestation creates brown patches of dried plants known as

Answer 36

Hopperburn

Question 37

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

Answer 37

Nilaparvata lugens

Question 38

White-backed plant hopper

Answer 38

Sogatella furcifera

Question 39

Nephotettix virescence

Answer 39

Green leaf hopper

Question 40

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

Answer 40

Nephotettix virescence

Question 41

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

Answer 41

Nephotettix virescence

Question 42

Recilia dorsalis)

Answer 42

Zigzag leafhopper

Question 43

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

Answer 43

Recilia dorsalis

Question 44

Leptocorisa oratorius

Answer 44

Paddy bug, seed bug

Question 45

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

Answer 45

Leptocorisa oratorius

Question 46

Scotinophara coarctata

Answer 46

Rice black bug

Question 47

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

Answer 47

scortinophara coarcata

Question 48

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

Answer 48

Scotinophara coarcata