A principle of plant disease control that is intended to eliminate, inhibit or kill pathogens that become established within the plant in the are is:

Which of the ff. species is a member of Poaceae

Which of the types of insect development is referred to as gradual metamorphosis.

This control method combines two or more compatible "control" methods in a sound ecological manner

Rye may induce this kind of affliction

A liquid pesticide formulation that does not dissolve in water but is dissolved in organic solvents

Which one of these insecticides is classified as cholinesterase enzyme inhibitor?

Which among these is a broadleaf weed

The growth stage/s that of the rice plant that is/are most preffered by rice bug

For annual crops, the maximum number of nematodes parasites can be recovered during:

All of these weeds belong to the grass family, except:

The green leafhoppers (GLH) cause this type of direct damage?

A yellowing cause by come factor other than light, such as by a virus or mycoplasma

The damage caused by corn seedlings maggots, Atherigona oryzae, at seedling stage is called

An example of asexual spores is

Which among the ff is not a type of root feeding nematodes?

Not eukaryotic pathogen

A type of mouthpart that is present in an adult Lepidopteran?

Which one of these insecticides affects the Na+ and K+ ions of the nerves?

This does not characterize a root-feeding nematode

A known non-spore forming fungi is

The following are component of a disease triangle, except:

The type of insect development of the order Thysanura

Insect used during modern weddings

Which of the following plant disease and their symptoms that do NOT match

This type of antenna is found among scarabaeid beetles

These group of insecticides are more effective against sucking insects

These group of insecticides are more effective against chewing insects

Which is not included in Koch's postulate?

Alate insects are?

The vector of bubonic plague bacteria

One example of an acute rodenticide:

This is the outer non-cellular layer covering the nematode body and is shed-off during molting

A seed with a virus is an important source of infection since the seed introduces

Strong pair of mandibles are highly developed in what insects

In case a disease is not known to you previously, it is necessary to resort to ____.

The most damaging insect pests of crucifers, the larvae of which pentrates the epidermis and feed on leaf tissues

Which of the ff is not a mechanical weapon used by plant pathogens to penetrate plant tissues?

Which one of these rice diseases is vectored or transmitted by green leafhopper?

The Autogenic Theory of Disease states that:

The infective stage of root knot nematode is during

The ff are example of chronic rodenticide except

The corn earworms, Helicoverpa armigera, is also called as

Some fungal pathogens form this structure to obtain nutrients from the host

All of the ff are measures to reduce or prevent the development of pathogens on plant surfaces EXCEPT

What is the government agenct that regulates movement of "would be pest"?

A structure which can be found in the thorax

Only the following is not a virus disease of rice:

The best method of improving effectiveness of beneficial insects is by

What is the process whereby seeds are treated with fungicide before planting to protect them from soil-borne diseases and insect pests?

Which one of these rice diseases is vectored or transmitted by green leafhopper?

Apterygote insects are known to possess this characteristics

Aflatoxin is formed by

This method of pest control is also reffered to as legal control

A kind of damage caused by the feeding of an insect through the removal of plant sap or plant parts in contrast with the damage caused by disease-transmitting insects

Flagellation pattern characterized by the presence of a single flagellum

A blight pathogen will affect the plant's capacity to

A fungal mycelium appearing on rotten fruit is an example of

A fungal structure used for attachment to the host surface

Fungi in the Philippines reproduce mainly by forming

In the absence of the plants in the field, fungal pathogens will not survive in

Which of the following disease is caused by viroid?

Nematodes are isolated by the so-called:

Which group of insecticides is known as first generation chemicals?

The term for eggs hatching within the uterus followed by expulsion of living young

In order to minimize pests infestations and garbage odor the National Solid Waste Management Law, RA 9003 mandates that all biodegradable garbage and all cellulosic waste like grasses, etc. be recycled into green charcoal. Which of the following statement is NOT correct

In Davao, this pesticide which is chemically known as Dibromochloropropane (DCBP) was used in 1970 extensively on banana plantations. However, at the end od 1980, high cases of sterility and other health concerns were recorded in ths area. The said pesticide was used to kill what certain plant pathogenic agent?

The main mechanism by which rats can quickly repopulate croplands following population reduction

Which of the following is incorrect?

The principle in IPM is to

The following factors affecting the population dynamics of rodents except

Population dynamics of rodents is more stable in

The Asiatic corn borers, Ostrinia furnacalis, is most abundant in corn during the

Some nematodes serves as ____ and transmit plant viruses which contributes in disease developement

The type of metamorphosis for exopterygotes is

Preying mantis use this type of forelegs to catch the prey

Scientific name of yellow squash beetles in cucurbits

Where is the cerci located in insects

Viruses are infectious particles that attack many forms of life including bacteria and plants. How can one see viruses?

The most attractive insect order because of its beautiful colorations

Fungal pathogens are often isolated using this technique

Among inverterbrates, only insects have this characteristics

A characteristics of fungi

Which among the ff does not belong to the five genera of phytopathogenic bacteria

From which character was the name Arthropoda derived?

Which of the ff statement is true?

When an insect undergoes the 4 stages of development. What is its type of metamorphosis?

Erionata thrax is also known as

What is the symptom and cause of etiolation?

A diseased plant is considered a

This part is missing in mollicutes

The pest population density in which the cost of control is equal or much higher than the expected cost of the protected crop

In crucifers, the leaf damage cause by this insect pest is lace-like in appearance

The casual organism of root knot of most vegetables?

It is an species of rodents that is not a good swimmer, but is able to climb trees for food

Rats breed rapidly during

Which among these is not an abiotic or parasitic plant disease

Where did Golden Apple Snails originated?

Substances such as sex pheromones that lure insects and can be used as a means of control

The casual organism of root knot of most vegetables