Sentence examples for pests are difficult from inspiring English sources

Unfortunately, white grub pests are difficult to control because of their hidden nature, sometimes combined with insufficient knowledge on their life cycles and below-ground ecology.

This pest is difficult to be controlled by the traditional chemicals due to the behavior of its larvae that hide inside the fruits or its pupae that pupate in the soil.

This pest is difficult to control in agricultural settings due to population explosions and larval resistance to several insecticides [38], [39].

Psocids of the genera Liposcelis and Lepinotus (Psocoptera) are well known small, soft-bodied stored-product pests that are difficult to identify using morphological characteristics, particularly the immature stages.

Economically important pests, that are difficult to control, are the stem and fruit borers reported from Myanmar, Sri Lanka and Thailand.

SIT relies on the mate-seeking and mating behavior of released insects, and is therefore species-specific and can be effective against pests that are difficult to control by other methods.

However, some impacts (e.g. reduced plant vigour and reduced pest resilience) are difficult to observe directly.

Timely chemical treatment of these pests can be difficult as their populations build rapidly.

Damages caused to various crops by sucking pests have become a serious concern, as they are difficult to control owing to their unique feeding strategy.

However, these traits are difficult to translate to new pest species, are unstable, and compromise insect productivity in mass rearing [ 25, 26].

However, low levels of the pest can be difficult to identify in soil samples, and may require multiple years of sampling before the pest population reaches a detectable level.